SpyTool.Win32.Ardamax_ecc44574ff – Adaware

HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.FAkeAlert.105 (B) (Emsisoft), Gen:Variant.FAkeAlert.105 (AdAware), SpyTool.Win32.Ardamax.FD, GenericEmailWorm.YR (Lavasoft MAS)Behaviour: Trojan, Worm, EmailWorm, SpyTool

The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary

MD5: ecc44574ff100fffe0dac6fa6815ea2e

SHA1: 771eb74eb59815d2656fc84fa2c52e39b4835b3f

SHA256: 1623a2d0f2dff4bb0f2c32a2df5fff5e404e8b9553eca479d8f1b5c7909152bc

SSDeep: 49152:SrM1d98zncx KdyWT8nIXtnSHQCBAgntIXtDVdQ:Sred98r/EtSHQYAgnqFVq

Size: 2081280 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: UPolyXv05_v6

Company: pinstaller

Created at: 2013-10-10 15:18:52

Analyzed on: WindowsXP SP3 32-bit

Summary: SpyTool. A program used to apply passive protection methods to spyware, such as obfuscation, encryption or polymorphism. The original malicious program is usually encrypted/compressed and stored inside the wrapper.

Dynamic Analysis

Payload

Behaviour	Description
EmailWorm	Worm can send e-mails.

Process activity

The SpyTool creates the following process(es):

%original file name%.exe:828

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

SBT.exe:232

File activity

The process %original file name%.exe:828 makes changes in the file system.

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

%Documents and Settings%\All Users\Application Data\NUCNOV\SBT.00 (2 bytes)
%Documents and Settings%\All Users\Application Data\NUCNOV\SBT.01 (81 bytes)
%Documents and Settings%\All Users\Application Data\NUCNOV\SBT.02 (56 bytes)
%Documents and Settings%\All Users\Application Data\NUCNOV\SBT.exe (15021 bytes)

Registry activity

The process SBT.exe:232 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FA 2E E4 77 AD 5C AE 23 9F 29 6F 32 8F 18 28 72"

[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 SpyTool adds the following link to its file to the system registry autorun key:

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

The process %original file name%.exe:828 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "30 BC F4 9B DD 29 C9 47 50 C1 BF A5 61 81 BA 4C"

[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\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\ShellNoRoam\MUICache\%Documents and Settings%\All Users\Application Data\NUCNOV]
"SBT.exe" = "SBT"

[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"

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

"ProxyBypass" = "1"

Dropped PE files

MD5	File path
2d3d2d84ad552e325b9fc05088717816	c:\Documents and Settings\All Users\Application Data\NUCNOV\SBT.01
a5d03fa42bbc61b83633f48e116a0903	c:\Documents and Settings\All Users\Application Data\NUCNOV\SBT.02
9bad0b2edb4dbb8cbba993d3192fa70c	c:\Documents and Settings\All Users\Application Data\NUCNOV\SBT.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.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	40340	40448	4.8235	261de96c442d72db74f13788a5a09cf6
.rdata	45056	9232	9728	3.72958	88e41e43a2075dc0bf713901dd97f9a1
.data	57344	8032	3584	1.58991	d4668da877d58af66239b78e3837253f
.rsrc	65536	2021328	2021376	5.31152	76c772569a6139f91e1e66104d60487c
.reloc	2088960	4752	5120	2.51899	b0010ab1a43e078069f1c623ab2001a7

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

SBT.exe_232:

.text

`.rdata

@.data

.rsrc

udPh

PSSSSSSh

PSSSSSSh!

YYhl%S

YYhX%S

t/hL%S

t2h@%S

vSSSh

FTPjK

FtPj;

C.PjRV

tGHt.Ht&

.EKSWU

FTPG

FTPj

FtPS

H%XLU

H%XMU

=KNILw.tT=RCNEw

_0 _8 _4;_,

SHA1 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>

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

6-9'6-9'

$6.:$6.:

*?#1*?#1

>8$4,8$4,

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

Camellia for x86 by <appro></appro>

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

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;}