Trojan.Win32.FlyStudio_04a1725f7c – Adaware

Dynamic Analysis

Payload

Behaviour	Description
EmailWorm	Worm can send e-mails.

Process activity

The Trojan creates the following process(es):No processes have been created.The Trojan injects its code into the following process(es):

%original file name%.exe:244

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process %original file name%.exe:244 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

C:\%original file name%.exe (20506 bytes)
C:\UUWiseHelper.dll (291 bytes)
C:\ZMApi.dll (7972 bytes)
C:\dc.dll (122 bytes)
C:\KZSZ.ini (170 bytes)

The Trojan deletes the following file(s):

C:\lmiwrvxscagazmhuwnww.dfg (0 bytes)

Registry activity

The process %original file name%.exe:244 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C1 A4 9B F7 24 C9 B0 25 B1 73 D0 C7 4C 65 40 8B"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Multimedia\DrawDib]
"vga.drv 1916x902x32(BGR 0)" = "31,31,31,31"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows Script\Settings]
"JITDebug" = "0"

Dropped PE files

MD5	File path
e401867149ea04124b232692a0c826e0	c:\%original file name%.exe
dc6b73cbd1f6f5cec640a8c634ae50c8	c:\UUWiseHelper.dll
3acaceed9edcf17193c69b5409cec1e0	c:\ZMApi.dll
f803ad370a8649a143429f179af5f3ab	c:\dc.dll

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

Click (here) to download and install Ad-Aware Free Antivirus.
Update the definition files.
Run a full scan of your computer.

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
C:\%original file name%.exe (20506 bytes)
C:\UUWiseHelper.dll (291 bytes)
C:\ZMApi.dll (7972 bytes)
C:\dc.dll (122 bytes)
C:\KZSZ.ini (170 bytes)
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

Company Name: ?????
Product Name: ???????? Www.52Dfg.Com
Product Version: 1.0.0.0
Legal Copyright: ??????????[www.52dfg.com],??????,?????????
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.0.0.0
File Description: ??,??,????????,????
Comments: ???????
Language: English (United States)

Company Name: ?????Product Name: ???????? Www.52Dfg.ComProduct Version: 1.0.0.0Legal Copyright: ??????????[www.52dfg.com],??????,?????????Legal Trademarks: Original Filename: Internal Name: File Version: 1.0.0.0File Description: ??,??,????????,????Comments: ???????Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	4050944	1651712	5.54509	7773cb57971234029d3ad3a3c0cb8077
UPX	4055040	1204224	1201664	5.02304	3ab7aa37a4860e4fbef7d9ac75dd69c4
.idata	5259264	4096	1536	2.60493	3defd170ce5745b5d5e7929ae47abd04
.rsrc	5263360	86016	85504	2.30289	3110f72914df6a7304a42af5d6eebd9e
UPX	5349376	4096	4096	5.53388	5e6090e46024ef52c28ccdf51286de9f

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://92wg.sinaapp.com/softtj.php?act=add&softname=MZDS	220.181.136.55
hxxp://92wg.sinaapp.com/getupdata.php?act=getver&wgname=MZDS	220.181.136.55

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /softtj.php?act=add&softname=MZDS HTTP/1.1

Referer: hXXp://92wg.sinaapp.com/softtj.php?act=add&softname=MZDS

Accept: */*

Accept-Language: zh-CN

Content-Type: application/x-www-form-urlencoded

User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36 SE 2.X MetaSr 1.0

Host: 92wg.sinaapp.com

Connection: Keep-Alive

HTTP/1.1 200 OK

Server: nginx

Date: Sat, 28 Nov 2015 05:44:17 GMT

Content-Type: text/html

Transfer-Encoding: chunked

Connection: keep-alive

Via: 10.67.15.28

Set-Cookie: saeut=37.57.16.189.1448689457291819; path=/; max-age=311040000

1..1..HTTP/1.1 200 OK..Server: nginx..Date: Sat, 28 Nov 2015 05:44:17 GMT..Content-Type: text/html..Transfer-Encoding: chunked..Connection: keep-alive..Via: 10.67.15.28..Set-Cookie: saeut=37.57.16.189.1448689457291819; path=/; max-age=311040000..1..1..0......

GET /getupdata.php?act=getver&wgname=MZDS HTTP/1.1

Referer: hXXp://92wg.sinaapp.com/getupdata.php?act=getver&wgname=MZDS

Accept: */*

Accept-Language: zh-CN

Content-Type: application/x-www-form-urlencoded

User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36 SE 2.X MetaSr 1.0

Host: 92wg.sinaapp.com

Connection: Keep-Alive

HTTP/1.1 200 OK

Server: nginx

Date: Sat, 28 Nov 2015 05:44:18 GMT

Content-Type: text/html

Transfer-Encoding: chunked

Connection: keep-alive

Via: 10.67.15.65

Set-Cookie: saeut=37.57.16.189.1448689458719340; path=/; max-age=311040000

2d..3.0*1.................................*nofile..HT..

Map

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps

%original file name%.exe_244:

.text

h.idata

H.rsrc

t%SVh

t$(SSh

~%UVW

u$SShe

oleaut32.dll

ole32.dll

user32.dll

kernel32.dll

ntdll.dll

UUWiseHelper.dll

dc.dll

ZMApi.dll

OLEACC.DLL

CreateIoCompletionPort

uu_reportError

uu_loginA

ReportError

ZM_ReportErrorA

{86AB1D8A-7995-4D86-AE5F-18710759228B}

E9326F3E-A23C-46D3-9C20-3AE825EFA0A7

{A068799B-7551-46b9-8CA8-EEF8357AFEA4}

hXXp://dfgpath.sinaapp.com/dfg/xy.txt

/KZSZ.ini

MSScriptControl.ScriptControl

function get__key(o) {

a.push(i);

//return JSON.stringify(jsonobj);

if (Object.prototype.toString.apply(O) === '[object Array]') {

for (var i = 0; i

S.push(O2String(O[i]));

J = '[' S.join(',') ']';

else if (Object.prototype.toString.apply(O) === '[object String]') {

J = '"' O.replace(/"/g,"\\\"").replace(/\r/g,"\\r").replace(/\n/g,"\\n") '"';

else if (Object.prototype.toString.apply(O) === '[object Number]') {

else if (Object.prototype.toString.apply(O) === '[object Date]') {

J = "new Date(" O.getTime() ")";

else if (Object.prototype.toString.apply(O) === '[object RegExp]' || Object.prototype.toString.apply(O) === '[object Function]') {

J = O.toString();

else if (Object.prototype.toString.apply(O) === '[object Object]') {

t = typeof (O[i]) == 'string' ? '"' O[i].replace(/"/g,"\\\"").replace(/\r/g,"\\r").replace(/\n/g,"\\n") '"' : (typeof (O[i]) === 'object' ? O2String(O[i]) : O[i]);

S.push(i ':' t);

J = '{' S.join(',') '}';

*.txt

|*.txt

\KZSZ.ini

{msg:"

\Blacklist.dat

skey

hXXp://ic2.s21.qzone.qq.com/cgi-bin/feeds/feeds2_shield_pannel_get?uin=

data.data.hide_uins

].uin

data.data.hide_uins[

hXXp://w.qzone.qq.com/cgi-bin/feeds/feeds2_shield_pannel_set?g_tk=

qzreferrer=http://user.qzone.qq.com/

WinHttp.WinHttpRequest.5.1

application/x-www-form-urlencoded

\Whitelist.dat

T@\*.dfg

cmd /c regsvr32 msscript.ocx jscript.dll vbscript.dll /s

{0:3,1:1,2:3,3:0,4:2}

hXXp://92wg.sinaapp.com/softtj.php?act=add&softname=MZDS

hXXp://92wg.sinaapp.com/getupdata.php?act=getver&wgname=MZDS

hXXp://92wg.vipsinaapp.com/softtj.php?act=add&softname=MZDS

hXXp://92wg.vipsinaapp.com/getupdata.php?act=getver&wgname=MZDS

hXXp://VVV.52dfg.com/forum-40-1.html?MZDS

hXXp://VVV.52dfg.com

.rsrc

%S4WD

hg%fpM

S.Ac9SR

0.I%3s

,wAe.kI

aiUy'4xu

%c*@j

.eH'y

{&%U)

lj%4U

xe%CNs

9F.cLe

hJK.ZH

O.qt0

KERNEL32.DLL

COMCTL32.dll

GDI32.dll

MSIMG32.dll

MSVCRT.dll

MSVFW32.dll

USER32.dll

SkinH_EL.dll

**.dU

\data.dat

hXXp://m.qzone.com/combo?action=1&g_f=&refresh_type=1&res_type=2&format=json&sid=

hXXp://ic2.s11.qzone.qq.com/cgi-bin/feeds/cgi_get_feeds_count.cgi?uin=

add: "hXXp://taotao.qq.com/cgi-bin/emotion_cgi_re_feeds",

del: "hXXp://taotao.qq.com/cgi-bin/emotion_cgi_delcomment_ugc",

more: "hXXp://taotao.qq.com/cgi-bin/emotion_cgi_ic_getcomments"

del: "hXXp://taotao.qq.com/cgi-bin/emotion_cgi_delreply_ugc",

del: "hXXp://taotao.qq.com/cgi-bin/emotion_cgi_delete_v6"

add: "hXXp://photo.qq.com/cgi-bin/common/cgi_add_piccomment_v2",

del: "hXXp://photo.qq.com/cgi-bin/common/cgi_del_piccomment_v2",

more: "hXXp://photo.qq.com/cgi-bin/common/cgi_add_piccomment_v2"

add: "hXXp://photo.qq.com/cgi-bin/common/cgi_add_icreply_v2",

del: "hXXp://photo.qq.com/cgi-bin/common/cgi_del_reply_v2",

more: "hXXp://photo.qq.com/cgi-bin/common/cgi_add_icreply_v2"

add: "hXXp://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshareaddcomment",

del: "hXXp://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzsharedeletecomment",

more: "hXXp://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshareget_comment"

del: "hXXp://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzsharedelete"

add: "hXXp://b1.qzone.qq.com/cgi-bin/blognew/add_comment",

del: "hXXp://b1.qzone.qq.com/cgi-bin/blognew/del_comment",

more: "hXXp://b1.qzone.qq.com/cgi-bin/blognew/get_comment_list"

add: "hXXp://b1.qzone.qq.com/cgi-bin/blognew/add_reply",

del: "hXXp://b1.qzone.qq.com/cgi-bin/blognew/del_reply",

del: "hXXp://b1.qzone.qq.com/cgi-bin/blognew/del_blog"

add: "hXXp://m.qzone.qq.com/cgi-bin/new/add_reply",

del: "hXXp://m.qzone.qq.com/cgi-bin/new/del_reply",

add: "hXXp://u.photo.qq.com/cgi-bin/upp/qun_add_uc_cmt",

data.newfeeds_uinlist

data.newfeeds_uinlist[

&scope=0&view=1&daylist=&uinlist=&gid=&flag=1&filter=all&applist=all&refresh=0&aisortEndTime=0&aisortOffset=0&getAisort=0&aisortBeginTime=0&pagenum=1&externparam=&firstGetGroup=0&icServerTime=0&mixnocache=0&scene=0&begintime=0&count=10&dayspac=0&sidomain=ctc.qzonestyle.gtimg.cn&useutf8=1&outputhtmlfeed=1&rd=0.

hXXp://ic2.s11.qzone.qq.com/cgi-bin/feeds/feeds3_html_more?uin=

data.data

].html

data.data[

].key

].abstime

].appid

].typeid

].nickname

data-unikey="

data-curkey="

hXXp://w.qzone.qq.com/cgi-bin/likes/internal_dolike_app?g_tk=

&curkey=

&unikey=

,nick:}

[dfg]nick[/dfg]

&richval=&richtype=&private=0&paramstr=1&qzreferrer=http://user.qzone.qq.com/

hXXp://

&richtype=1&private=0&paramstr=1&qzreferrer=http://user.qzone.qq.com/

'].comment.add

hXXp://user.qzone.qq.com/q/taotao/cgi-bin/emotion_cgi_re_feeds

Content-Disposition: form-data; name="skey"

{skey}

Referer: hXXp://ctc.qzs.qq.com/qzone/client/photo/swf/SimpleLocalFileUploader/Main.swf?max_age=20140605

Origin: hXXp://ctc.qzs.qq.com

hXXp://up.photo.qq.com/cgi-bin/upload/cgi_upload_image

data.url

1970-01-01 08:00:00

hXXp://login.52dfg.com/xinxi/shuoshuo/getss.php?type=

hXXp://up.qzone.com/cgi-bin/upload/cgi_upload_pic_v2

&base64=1&hd_height=1000&hd_width=2048&hd_quality=96&output_type=json&preupload=1&charset=utf-8&output_charset=utf-8&logintype=sid&Exif_CameraMaker=&Exif_CameraModel=&Exif_Time=&uin=

&logintype=sid&refer=shuoshuo

].picinfo.albumid

].picinfo.lloc

].picinfo.sloc

].picinfo.type

].picinfo.height

].picinfo.width

hXXp://m.qzone.com/mood/publish_mood

\task.dat

].time

hXXp://login.52dfg.com/online.php

hXXp://w666666.sinaapp.com/dfg/y.php

.exew666666.vipsinaapp.com/dfg/y.php

hXXps://w666666.sinaapp.com/dfg/x.php?m=1

httphXXps://w666666.vipsinaapp.com/dfg/x.php?m=1

hXXps://w666666.sinaapp.com/dfg/x.php?m=3

hXXps://w666666.vipsinaapp.com/dfg/x.php?m=3

\Application Data\Microsoft\Internet Explorer\Quick Launch\*.lnk

http\shell\open\command\Shell.Application

QQBrowser.exe

hXXps://login.52dfg.com/kg/gogo.php

hXXp://dfgpath.sinaapp.com/dfg/gonggao.txt

hXXp://dfgpath.vipsinaapp.com/dfg/gonggao.txt

].txt

].url

hXXp://VVV.sz789.net/reg.aspx

hXXp://VVV.uudama.com/userReg.html

hXXp://VVV.ruokuai.com/home/register

hXXp://VVV.zhima365.com/userreg.php

\UUWiseHelper.dll

`.rdata

@.data

@.reloc

SSSSh

ByScreen.JPG

operator

GetProcessWindowStation

E:\work\UUWiseHelper

\UUWiseHelper.pdb

KERNEL32.dll

RegCloseKey

RegOpenKeyExW

ADVAPI32.dll

SHELL32.dll

OLEAUT32.dll

SHLWAPI.dll

urlmon.dll

dbghelp.dll

gdiplus.dll

IPHLPAPI.DLL

WS2_32.dll

GetProcessHeap

GetCPInfo

UUWiseHelper.DLL

uu_easyRecognizeUrlA

uu_easyRecognizeUrlW

uu_loginW

uu_recognizeByCodeTypeAndUrlA

uu_recognizeByCodeTypeAndUrlW

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps