Malware Analysis Report

2024-10-18 23:06

Sample ID 240726-yn95ts1ekm
Target 757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118
SHA256 87023f898385c88304645e2b44eb82d0b9983b6a3bede25a4d9fe9d27a3275d4
Tags
ardamax discovery keylogger persistence stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

87023f898385c88304645e2b44eb82d0b9983b6a3bede25a4d9fe9d27a3275d4

Threat Level: Known bad

The file 757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

ardamax discovery keylogger persistence stealer

Ardamax

Ardamax main executable

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Checks installed software on the system

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-26 19:57

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-26 19:57

Reported

2024-07-27 08:21

Platform

win7-20240704-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe"

Signatures

Ardamax

keylogger stealer ardamax

Ardamax main executable

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\STPW Agent = "C:\\Windows\\SysWOW64\\28463\\STPW.exe" C:\Windows\SysWOW64\28463\STPW.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\28463\STPW.007 C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\STPW.exe C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\AKV.exe C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\28463 C:\Windows\SysWOW64\28463\STPW.exe N/A
File created C:\Windows\SysWOW64\28463\STPW.001 C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\STPW.006 C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\28463\STPW.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\28463\STPW.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe"

C:\Windows\SysWOW64\28463\STPW.exe

"C:\Windows\system32\28463\STPW.exe"

C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE

"C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE"

Network

N/A

Files

\Users\Admin\AppData\Local\Temp\@671C.tmp

MD5 c3679c3ff636d1a6b8c65323540da371
SHA1 d184758721a426467b687bec2a4acc80fe44c6f8
SHA256 d4eba51c616b439a8819218bddf9a6fa257d55c9f04cf81441cc99cc945ad3eb
SHA512 494a0a32eef4392ecb54df6e1da7d93183473c4e45f4ac4bd6ec3b0ed8c85c58303a0d36edec41420d05ff624195f08791b6b7e018419a3251b7e71ec9b730e7

C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE

MD5 2517b5da22104857c8266df762d60139
SHA1 9540a136e82b6aa5ccf9e4e92a6f7ad995b49e91
SHA256 3f194224ddcdb4e93768bb6c0d616330d061ce0dcbe30f18b6f7651555f4600b
SHA512 cda08bfc745e317d859e443cfb96ed4a7f773123f5ea99fe2f692676a0d632a4881b4f0defe7f1cfda7a89da4d16cda09107edbc18d57bdc919a55e02acd9e0a

C:\Windows\SysWOW64\28463\STPW.exe

MD5 17535dddecf8cb1efdba1f1952126547
SHA1 a862a9a3eb6c201751be1038537522a5281ea6cb
SHA256 1a3d28ac6359e58aa656f4734f9f36b6c09badadcf9fb900b9b118d90c38a9dd
SHA512 b4f31b552ab3bb3dafa365aa7a31f58674ae7ee82ce1d23457f2e7047431430b00abb3b5498491725639daf583b526b278a737168cfdc4e9ec796dfbc14a53d8

C:\Windows\SysWOW64\28463\STPW.001

MD5 093f233d48b68c63495f99523a80f083
SHA1 83cd4b470372c6a86a6aa332e521c812f6c49802
SHA256 f0d283f211e4a8696928755ab67493f5f3f9274fa1bbbef4408c4ca9eba3cf10
SHA512 5337ed9a498467fd7b6af9a49906da08138a83c6239af4fc543acf88f2a2a8704b9a920ea20030368568cacf9dc78d982bd42f0411801d17431a37b48deab6bd

C:\Windows\SysWOW64\28463\STPW.007

MD5 b5a87d630436f958c6e1d82d15f98f96
SHA1 d3ff5e92198d4df0f98a918071aca53550bf1cff
SHA256 a895ad4d23e8b2c2dc552092f645ca309e62c36d4721ebfe7afd2eee7765d4b2
SHA512 fd7bae85a86bdaa12fec826d1d38728a90e2037cb3182ad7652d8a9f54c4b322734c587b62221e6f907fce24fcf2e0ae4cce1f5e3d8861661064b4da24bd87ce

C:\Windows\SysWOW64\28463\STPW.006

MD5 43f02e9974b1477c1e6388882f233db0
SHA1 f3e27b231193f8d5b2e1b09d05ae3a62795cf339
SHA256 3c9e56e51d5a7a1b9aefe853c12a98bf246039aa46db94227ea128f6331782ba
SHA512 e22d14735606fe75ee5e55204807c3f5531d3e0c4f63aa4a3b2d4bb6abda6128c7e2816753f2e64400ac6dae8f8ef1e013a7a464dff2a79ad9937c48821a067f

C:\Windows\SysWOW64\28463\AKV.exe

MD5 b8fa30233794772b8b76b4b1d91c7321
SHA1 0cf9561be2528944285e536f41d502be24c3aa87
SHA256 14116fa79ccc105fabd312b4dff74933f8684c6b27db37e5e3a79d159092d29a
SHA512 10ce8b18e7afb8c7e30bb90b0a1f199ef0b77873fa7a9efc596606e151be6b516c0ec6222a9032bdcc527e80964f53d20a28fa1881a08b4df303b2e28204549d

memory/2748-33-0x0000000000290000-0x0000000000291000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-26 19:57

Reported

2024-07-27 08:20

Platform

win10v2004-20240709-en

Max time kernel

132s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe"

Signatures

Ardamax

keylogger stealer ardamax

Ardamax main executable

Description Indicator Process Target
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\STPW Agent = "C:\\Windows\\SysWOW64\\28463\\STPW.exe" C:\Windows\SysWOW64\28463\STPW.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\28463\STPW.001 C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\STPW.006 C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\STPW.007 C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\STPW.exe C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\28463\AKV.exe C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\28463 C:\Windows\SysWOW64\28463\STPW.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\28463\STPW.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\28463\STPW.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A
N/A N/A C:\Windows\SysWOW64\28463\STPW.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\757f1b9fc6bd9bbc6580f914d5aa2522_JaffaCakes118.exe"

C:\Windows\SysWOW64\28463\STPW.exe

"C:\Windows\system32\28463\STPW.exe"

C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE

"C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\@BE5E.tmp

MD5 c3679c3ff636d1a6b8c65323540da371
SHA1 d184758721a426467b687bec2a4acc80fe44c6f8
SHA256 d4eba51c616b439a8819218bddf9a6fa257d55c9f04cf81441cc99cc945ad3eb
SHA512 494a0a32eef4392ecb54df6e1da7d93183473c4e45f4ac4bd6ec3b0ed8c85c58303a0d36edec41420d05ff624195f08791b6b7e018419a3251b7e71ec9b730e7

C:\Windows\SysWOW64\28463\STPW.exe

MD5 17535dddecf8cb1efdba1f1952126547
SHA1 a862a9a3eb6c201751be1038537522a5281ea6cb
SHA256 1a3d28ac6359e58aa656f4734f9f36b6c09badadcf9fb900b9b118d90c38a9dd
SHA512 b4f31b552ab3bb3dafa365aa7a31f58674ae7ee82ce1d23457f2e7047431430b00abb3b5498491725639daf583b526b278a737168cfdc4e9ec796dfbc14a53d8

C:\Users\Admin\AppData\Local\Temp\TASKMAN.EXE

MD5 2517b5da22104857c8266df762d60139
SHA1 9540a136e82b6aa5ccf9e4e92a6f7ad995b49e91
SHA256 3f194224ddcdb4e93768bb6c0d616330d061ce0dcbe30f18b6f7651555f4600b
SHA512 cda08bfc745e317d859e443cfb96ed4a7f773123f5ea99fe2f692676a0d632a4881b4f0defe7f1cfda7a89da4d16cda09107edbc18d57bdc919a55e02acd9e0a

C:\Windows\SysWOW64\28463\AKV.exe

MD5 b8fa30233794772b8b76b4b1d91c7321
SHA1 0cf9561be2528944285e536f41d502be24c3aa87
SHA256 14116fa79ccc105fabd312b4dff74933f8684c6b27db37e5e3a79d159092d29a
SHA512 10ce8b18e7afb8c7e30bb90b0a1f199ef0b77873fa7a9efc596606e151be6b516c0ec6222a9032bdcc527e80964f53d20a28fa1881a08b4df303b2e28204549d

C:\Windows\SysWOW64\28463\STPW.007

MD5 b5a87d630436f958c6e1d82d15f98f96
SHA1 d3ff5e92198d4df0f98a918071aca53550bf1cff
SHA256 a895ad4d23e8b2c2dc552092f645ca309e62c36d4721ebfe7afd2eee7765d4b2
SHA512 fd7bae85a86bdaa12fec826d1d38728a90e2037cb3182ad7652d8a9f54c4b322734c587b62221e6f907fce24fcf2e0ae4cce1f5e3d8861661064b4da24bd87ce

memory/4560-34-0x00000000020E0000-0x00000000020E1000-memory.dmp

C:\Windows\SysWOW64\28463\STPW.006

MD5 43f02e9974b1477c1e6388882f233db0
SHA1 f3e27b231193f8d5b2e1b09d05ae3a62795cf339
SHA256 3c9e56e51d5a7a1b9aefe853c12a98bf246039aa46db94227ea128f6331782ba
SHA512 e22d14735606fe75ee5e55204807c3f5531d3e0c4f63aa4a3b2d4bb6abda6128c7e2816753f2e64400ac6dae8f8ef1e013a7a464dff2a79ad9937c48821a067f

C:\Windows\SysWOW64\28463\STPW.001

MD5 093f233d48b68c63495f99523a80f083
SHA1 83cd4b470372c6a86a6aa332e521c812f6c49802
SHA256 f0d283f211e4a8696928755ab67493f5f3f9274fa1bbbef4408c4ca9eba3cf10
SHA512 5337ed9a498467fd7b6af9a49906da08138a83c6239af4fc543acf88f2a2a8704b9a920ea20030368568cacf9dc78d982bd42f0411801d17431a37b48deab6bd

memory/4560-38-0x00000000020E0000-0x00000000020E1000-memory.dmp