Malware Analysis Report

2024-10-18 22:07

Sample ID 240611-pyex1axcje
Target 9e3856d35e9b55d33c1c919787907044_JaffaCakes118
SHA256 cf85df4419807f0d65e4ea91ee1c0ada18c945750533a480b1bc57c0669ddcf1
Tags
bootkit discovery evasion persistence spyware stealer
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
9/10

SHA256

cf85df4419807f0d65e4ea91ee1c0ada18c945750533a480b1bc57c0669ddcf1

Threat Level: Likely malicious

The file 9e3856d35e9b55d33c1c919787907044_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

bootkit discovery evasion persistence spyware stealer

Enumerates VirtualBox registry keys

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Looks for VirtualBox Guest Additions in registry

Downloads MZ/PE file

Checks BIOS information in registry

Reads user/profile data of web browsers

Executes dropped EXE

Loads dropped DLL

Checks installed software on the system

Writes to the Master Boot Record (MBR)

Checks system information in the registry

Drops file in Windows directory

Checks for VirtualBox DLLs, possible anti-VM trick

Enumerates physical storage devices

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-11 12:44

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 12:43

Reported

2024-06-11 12:46

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe"

Signatures

Enumerates VirtualBox registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__ C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Downloads MZ/PE file

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Checks system information in the registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Checks for VirtualBox DLLs, possible anti-VM trick

Description Indicator Process Target
File opened (read-only) \??\VBoxMiniRdrDN C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\fonts\pns.ttf C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 552 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\ProgramData\Чистилка\Чистилка.exe
PID 552 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\ProgramData\Чистилка\Чистилка.exe
PID 552 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\ProgramData\Чистилка\Чистилка.exe
PID 552 wrote to memory of 2116 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
PID 552 wrote to memory of 2116 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
PID 552 wrote to memory of 2116 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
PID 552 wrote to memory of 724 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
PID 552 wrote to memory of 724 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
PID 552 wrote to memory of 724 N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe"

C:\ProgramData\Чистилка\Чистилка.exe

C:\ProgramData\Чистилка\Чистилка.exe /srvcreate

C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe" /test

C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe" /restart /util

Network

Country Destination Domain Proto
US 8.8.8.8:53 chistilka.com udp
DE 80.240.18.87:443 chistilka.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 pay.chistilka.com udp
US 172.67.172.117:443 pay.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 8.8.8.8:53 87.18.240.80.in-addr.arpa udp
US 8.8.8.8:53 117.172.67.172.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 172.67.172.117:443 pay.chistilka.com tcp
US 8.8.8.8:53 chistilka.ru udp
US 104.21.37.8:443 chistilka.ru tcp
US 8.8.8.8:53 time.google.com udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 8.37.21.104.in-addr.arpa udp
US 8.8.8.8:53 0.35.239.216.in-addr.arpa udp
US 8.8.8.8:53 stat2.chistilka.com udp
GB 216.58.213.14:80 www.google-analytics.com tcp
FR 54.37.81.78:443 stat2.chistilka.com tcp
US 8.8.8.8:53 update.chistilka.com udp
FR 5.135.140.26:443 update.chistilka.com tcp
DE 80.240.18.87:443 chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 8.8.8.8:53 14.213.58.216.in-addr.arpa udp
US 8.8.8.8:53 78.81.37.54.in-addr.arpa udp
US 8.8.8.8:53 26.140.135.5.in-addr.arpa udp
US 172.67.172.117:443 pay.chistilka.com tcp
DE 140.82.35.84:80 140.82.35.84 tcp
US 172.67.172.117:443 pay.chistilka.com tcp
FR 5.135.140.26:443 update.chistilka.com tcp
US 8.8.8.8:53 84.35.82.140.in-addr.arpa udp
US 8.8.8.8:53 new.config.chistilka.com udp
US 8.8.8.8:53 api.amplitude.com udp
US 54.69.96.217:80 api.amplitude.com tcp
US 104.21.37.8:443 chistilka.ru tcp
FR 54.37.81.78:443 stat2.chistilka.com tcp
FR 54.37.81.78:443 stat2.chistilka.com tcp
DE 80.240.18.87:443 chistilka.com tcp
FR 5.135.140.26:443 update.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 172.67.172.117:443 pay.chistilka.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

C:\ProgramData\Чистилка\Чистилка.exe

MD5 9e3856d35e9b55d33c1c919787907044
SHA1 4bcb49aceccd54aebd5a723a2cc214ad4927b282
SHA256 cf85df4419807f0d65e4ea91ee1c0ada18c945750533a480b1bc57c0669ddcf1
SHA512 741d24e6b32852715536df9913dfba99f88656a1374e16201a4e7c45203b75a5d2a4e5ff7d13d8cb26b0ddee197675eb55b3334648923df83bdc18bb473e452a

C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

MD5 d7ebb78bf1f0e4a8278b2d63013b1134
SHA1 498b315dcba9bf4403d6748be61453d5d8991b61
SHA256 c5a685088c44b1fbd01f49587af753b6a0f8f793de8d3b3d7e170574fef27ba8
SHA512 ead20a19b5262ce34f13bae9c9d1082ce5bf740759ea82042d83600094e38de7aea87d7533fdd7660369ec5bb8549e107aff562fa477711515eb9c15c9c93312

C:\Users\Admin\AppData\Local\Temp\cln499D.tmp

MD5 abee4387ab69da821ed9397cc651597d
SHA1 5d14f4afdbe15448bf884b528ffffab874f920a7
SHA256 ac1dfd38d2fa61e28211e196cd3d754f6ccfb220e8c1beba52e54825cf615e22
SHA512 e014294cb60b66bd259f4a6ce262fc9eca30a30e7674dae178dbac6132ba464120e5d1076ee81c1210a2f42f819d94373733172cef9fda77c9effb4eed53a904

memory/552-44-0x0000000000690000-0x0000000000AEE000-memory.dmp

C:\ProgramData\Чистилка\config.dat

MD5 fa275e82023fdbcafaae60ef04dfbc78
SHA1 0fcdc2f3d501b3f20fa6b5a8b53c96c27d74aab7
SHA256 2ca7660f386dd7a3d492c39c82c33e09dec745f1b7e43c018d155cd07393a044
SHA512 54dc2cf6f88263839bdbb20a22c3265c302fc6965aed43df2bb248fb11bd9df7416d87a9f893d3eb74b9184a73bbe1a432be40801d6b095f7373e198c76a03be

C:\ProgramData\Чистилка\settings.json

MD5 7e457a209d6893de2baab788cb3cb409
SHA1 eee8e1713433b66b39c93aceb5bcf4134d0882d4
SHA256 85d93ba151558225e1bf5a01ddb1b53b5577b4501e4664066c85b9aada895ff1
SHA512 59686f7bb1cb0d77784f11b72b149ba6ede513d4dde959cfda1d6798a6b1ddc232373a247477329f5bccf040fe251af3fbb8ad5b60a9df466dfaf0636bb3c369

C:\WINDOWS\FONTS\PNS.TTF

MD5 df8c626474a73ab7a8b511655597c7c4
SHA1 5de28f387ea88553d195d1978286d43c33231969
SHA256 723091ba5a1b8e65164075516d69c00c71225c6dde61ffc32dd4047803ab42b5
SHA512 c8f7d1577cb70610c40b96c835faca6b916c4924b5061351c8a67287567556b2014efb7c73cdcc4fb6533829541cd0264b8a9e428d3c572e29c06b0d96633d59

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 12:43

Reported

2024-06-11 12:46

Platform

win7-20240419-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Чистилка\Чистилка.exe N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\fonts\pns.ttf C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\ProgramData\Чистилка\Чистилка.exe N/A
Token: SeRestorePrivilege N/A C:\ProgramData\Чистилка\Чистилка.exe N/A
Token: SeDebugPrivilege N/A C:\ProgramData\Чистилка\Чистилка.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe"

C:\ProgramData\Чистилка\Чистилка.exe

C:\ProgramData\Чистилка\Чистилка.exe /srvcreate

Network

Country Destination Domain Proto
US 8.8.8.8:53 chistilka.com udp
DE 140.82.35.84:80 tcp
US 8.8.8.8:53 pay.chistilka.com udp
DE 140.82.35.84:80 tcp
US 8.8.8.8:53 chistilka.ru udp
US 8.8.8.8:53 time.google.com udp
US 8.8.8.8:53 chistilka.com udp
US 8.8.8.8:53 stat2.chistilka.com udp
US 8.8.8.8:53 chistilka.ru udp
DE 140.82.35.84:80 tcp
US 8.8.8.8:53 update.chistilka.com udp
US 8.8.8.8:53 chistilka.com udp
DE 140.82.35.84:80 tcp
DE 140.82.35.84:80 tcp
DE 140.82.35.84:80 tcp
US 8.8.8.8:53 update.chistilka.com udp

Files

\ProgramData\Чистилка\Чистилка.exe

MD5 9e3856d35e9b55d33c1c919787907044
SHA1 4bcb49aceccd54aebd5a723a2cc214ad4927b282
SHA256 cf85df4419807f0d65e4ea91ee1c0ada18c945750533a480b1bc57c0669ddcf1
SHA512 741d24e6b32852715536df9913dfba99f88656a1374e16201a4e7c45203b75a5d2a4e5ff7d13d8cb26b0ddee197675eb55b3334648923df83bdc18bb473e452a

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Чистилка\Чистилка.lnk

MD5 58bcddcc3eac8d42898eb18aa2e06633
SHA1 47d4029d6763b375b98618917cd4122f9e8d6491
SHA256 51a0ccabe44d754c10c390128a70f824d3da524bfc7e4bf42014a64ae81bb857
SHA512 202d577d42536dc1df783c3fe1199a3df621f517914baac7a211b8496b1bd2d1eeb09cfbdd986c3b89d3157270f1df77d6b2004d8d12ba57a2b5395a2d6fdf35

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Чистилка\Чистилка Uninstall.lnk

MD5 a0245f7e9c86725051025380bce02890
SHA1 367f0e48444ffac11bbd714f548a2c18463b2cb7
SHA256 2a2724bbcccda9f1a3eeff092405812cb33c13edd2b79285a33742fc039747a6
SHA512 4928be758dab113ea226444b93c08d808c033ea75e11af6234ff68eb47ab52898dec649746e15870cf4e9134b6008432e56a8bb9a959094f2f9a9126ae2b3b3f

memory/1148-39-0x0000000000090000-0x00000000004EE000-memory.dmp

memory/1148-43-0x0000000000090000-0x00000000004EE000-memory.dmp