Gen.Variant.FAkeAlert.105_78c606591d

Dynamic Analysis

Payload

Behaviour	Description
EmailWorm	Worm can send e-mails.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:596

The Trojan injects its code into the following process(es):

FGW.exe:528

File activity

The process %original file name%.exe:596 makes changes in the file system.

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

C:\ipconfig.exe (27 bytes)
%Documents and Settings%\All Users\Application Data\SOITBB\FGW.01 (81 bytes)
%Documents and Settings%\All Users\Application Data\SOITBB\FGW.00 (2 bytes)
%Documents and Settings%\All Users\Application Data\SOITBB\FGW.exe (15021 bytes)
%Documents and Settings%\All Users\Application Data\SOITBB\FGW.02 (56 bytes)

Registry activity

The process %original file name%.exe:596 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "17 DB 08 4D C1 55 65 B2 9E 33 5B 5D 10 E4 67 6B"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\c:]
"ipconfig.exe" = "IP Configuration Utility"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\All Users\Application Data\SOITBB]
"FGW.exe" = "FGW"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The process FGW.exe:528 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FA 48 D8 39 2C 01 B9 7A 70 E3 D0 AC FD 8F C7 3B"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

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

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"FGW Start" = "%Documents and Settings%\All Users\Application Data\SOITBB\FGW.exe"

Dropped PE files

MD5	File path
727c21f8a717c670dc58ea5d4320830d	c:\Documents and Settings\All Users\Application Data\SOITBB\FGW.01
93cc3e34cd1ceb2caa86f813d2dc9d58	c:\Documents and Settings\All Users\Application Data\SOITBB\FGW.02
e99ee761b237906d42a9236368f2fe01	c:\Documents and Settings\All Users\Application Data\SOITBB\FGW.exe
cabb20e171770ff64614a54c1f31c033	c:\ipconfig.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Static Analysis

VersionInfo

No information is available.

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	40340	40448	4.81454	7e7b96c807773399fa6a6c21cd4257fb
.rdata	45056	9232	9728	3.72958	88e41e43a2075dc0bf713901dd97f9a1
.data	57344	8032	3584	1.58991	d4668da877d58af66239b78e3837253f
.rsrc	65536	2044264	2044416	5.31377	7ba8580d6ecae59df73ae3506b7f3031
.reloc	2113536	4752	5120	2.51389	e14723b14bb31fadb863bc2e41889811

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

Strings from Dumps

FGW.exe_528:

.text

.text

`.rdata

`.rdata

@.data

@.data

.rsrc

.rsrc

udPh07Y

udPh07Y

PSSSSSSh

PSSSSSSh

PSSSSSSh!

PSSSSSSh!

vSSSh

vSSSh

FTPjK

FTPjK

FtPj;

FtPj;

C.PjRV

C.PjRV

tGHt.Ht&

tGHt.Ht&

.EKSWU

.EKSWU

FTPG

FTPG

FTPj

FTPj

FtPS

FtPS

=KNILw.tT=RCNEw

=KNILw.tT=RCNEw

_0 _8 _4;_,

_0 _8 _4;_,

SHA1 block transform for x86, CRYPTOGAMS by <appro></appro>

SHA1 block transform for x86, CRYPTOGAMS by <appro></appro>

SHA256 block transform for x86, CRYPTOGAMS by <appro></appro>

SHA256 block transform for x86, CRYPTOGAMS by <appro></appro>

DlSHA512 block transform for x86, CRYPTOGAMS by <appro></appro>

DlSHA512 block transform for x86, CRYPTOGAMS by <appro></appro>

Montgomery Multiplication for x86, CRYPTOGAMS by <appro></appro>

Montgomery Multiplication for x86, CRYPTOGAMS by <appro></appro>

6-9'6-9'

6-9'6-9'

$6.:$6.:

$6.:$6.:

*?#1*?#1

*?#1*?#1

>8$4,8$4,

>8$4,8$4,

AES for x86, CRYPTOGAMS by <appro></appro>

AES for x86, CRYPTOGAMS by <appro></appro>

Camellia for x86 by <appro></appro>

Camellia for x86 by <appro></appro>

RC4 for x86, CRYPTOGAMS by <appro></appro>

RC4 for x86, CRYPTOGAMS by <appro></appro>

FRegDeleteKeyExW

FRegDeleteKeyExW

MARGIN-BOTTOM: 11px; BORDER-STYLE: solid; BORDER-COLOR: #DFDFE5; BORDER-WIDTH: 2px; BACKGROUND-COLOR: #DFDFE5; }H2 { COLOR: black; BACKGROUND-COLOR: #FFFFF; FONT-SIZE: 12pt; FONT-WEIGHT: normal; MARGIN-BOTTOM: 0px; MARGIN-TOP: 10px;}