Malware Analysis Report

2024-10-18 23:06

Sample ID 240723-s263faxdkj
Target 682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118
SHA256 60e75fde69c750b653a3801b39ee5829a7f2b44d81719a6d9af1346fcf5c4220
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

60e75fde69c750b653a3801b39ee5829a7f2b44d81719a6d9af1346fcf5c4220

Threat Level: Known bad

The file 682b26712c5d442e59bbe6ded5d41fb0_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

Checks installed software on the system

Adds Run key to start application

Drops file in System32 directory

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-23 15:38

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-23 15:38

Reported

2024-07-23 15:40

Platform

win7-20240708-en

Max time kernel

135s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_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\RBFOCL\MPJ.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\MPJ Start = "C:\\Windows\\SysWOW64\\RBFOCL\\MPJ.exe" C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\RBFOCL\MPJ.004 C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\MPJ.001 C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\MPJ.002 C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\AKV.exe C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\MPJ.exe C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\RBFOCL\ C:\Windows\SysWOW64\RBFOCL\MPJ.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\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe"

C:\Windows\SysWOW64\RBFOCL\MPJ.exe

"C:\Windows\system32\RBFOCL\MPJ.exe"

Network

N/A

Files

\Windows\SysWOW64\RBFOCL\MPJ.exe

MD5 9ab9b7b74790b7bb2798dd2b26f4a913
SHA1 e8ffa981a0149aa6441dcb0dd42f7baf6eb773a2
SHA256 df1c8d608ebd300889cf21c3bda6d5dd2574d68e1f530cc5a885449a22177a75
SHA512 ffffe21d8cc244aacaaba2eb13cc77ad800a196ecf6f77637a8a1f6d456cabb8331970ab358ab21dcf9832343379b4f0486da3990d45eb2f2765e55b7404739e

C:\Windows\SysWOW64\RBFOCL\MPJ.004

MD5 1d0ec851016d5fb4ddc9b6029f2d4a70
SHA1 e1de265adfa3ddd10e9289c2fe4443031511d66b
SHA256 0c24ba7d44d32f43f27dd5e08b12a970fe5d73160e1819f920ab8aeca7e27213
SHA512 72d7ab8d65c7855a0e570e7f2bbb452d363597addc70b1cb79ac8a1592ff3e54c632ece5d96c0f90d1847becef8cf60d7a23952173df408592e9ec3c937877e9

C:\Windows\SysWOW64\RBFOCL\MPJ.002

MD5 246761f047f6aa98d6eaad66a2f883b9
SHA1 42474a5b23d03e094103b62fd7e820457cf807c4
SHA256 3774021a3cdf32d23fd5921cea4de8c26b08f0d601f3097550a7e8af7b00f111
SHA512 d39d0913975ca2f8d585b72667d76de09ce7817f6de26ef21a8b62edc25d7fab39785f036992d19ca5700f5fc2ee377e696142c41529f23f503e8eefff393144

C:\Windows\SysWOW64\RBFOCL\MPJ.001

MD5 34c92b717ae97bc926f56ba56a44f24a
SHA1 ccaf3c6bf0c73564d0bf19c92b8d25008ffffbfa
SHA256 6e60d85b35f5e9222375f606e4116b38364a4a943596ddb0d914cf1cf4791774
SHA512 2a9eb63837db128c9e036976d903ebd925e6952ab6bf4efa0e370e79f9fefe0ed6e44e4ab444f56ace1149f4dd14797f568e8827e7cebd1e5581dcf309f9745a

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

MD5 eed8ebfafcd3dcb0f88b237388fba8df
SHA1 620767d6de979bf360e3a188ed03534c769f337b
SHA256 dc3c5152d69547ffb583574707025eee74af46882cdf851221f66b1e81d2ed90
SHA512 28148a2bfdbcaf61f5f664c6b4dd0377d151d775ad001818da2bba6327f02020fabb016a4c8aaa5f841ea1dc1a6d8419bca55bc74924a657476e15abbd8dabb3

memory/1352-15-0x0000000000230000-0x0000000000231000-memory.dmp

memory/1352-17-0x0000000000230000-0x0000000000231000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-23 15:38

Reported

2024-07-23 15:40

Platform

win10v2004-20240709-en

Max time kernel

135s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.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\MPJ Start = "C:\\Windows\\SysWOW64\\RBFOCL\\MPJ.exe" C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\RBFOCL\MPJ.004 C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\MPJ.001 C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\MPJ.002 C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\AKV.exe C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\RBFOCL\MPJ.exe C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\RBFOCL\ C:\Windows\SysWOW64\RBFOCL\MPJ.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\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A
N/A N/A C:\Windows\SysWOW64\RBFOCL\MPJ.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\682b26712c5d442e59bbe6ded5d41fb0_JaffaCakes118.exe"

C:\Windows\SysWOW64\RBFOCL\MPJ.exe

"C:\Windows\system32\RBFOCL\MPJ.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 121.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

C:\Windows\SysWOW64\RBFOCL\MPJ.exe

MD5 9ab9b7b74790b7bb2798dd2b26f4a913
SHA1 e8ffa981a0149aa6441dcb0dd42f7baf6eb773a2
SHA256 df1c8d608ebd300889cf21c3bda6d5dd2574d68e1f530cc5a885449a22177a75
SHA512 ffffe21d8cc244aacaaba2eb13cc77ad800a196ecf6f77637a8a1f6d456cabb8331970ab358ab21dcf9832343379b4f0486da3990d45eb2f2765e55b7404739e

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

MD5 eed8ebfafcd3dcb0f88b237388fba8df
SHA1 620767d6de979bf360e3a188ed03534c769f337b
SHA256 dc3c5152d69547ffb583574707025eee74af46882cdf851221f66b1e81d2ed90
SHA512 28148a2bfdbcaf61f5f664c6b4dd0377d151d775ad001818da2bba6327f02020fabb016a4c8aaa5f841ea1dc1a6d8419bca55bc74924a657476e15abbd8dabb3

C:\Windows\SysWOW64\RBFOCL\MPJ.001

MD5 34c92b717ae97bc926f56ba56a44f24a
SHA1 ccaf3c6bf0c73564d0bf19c92b8d25008ffffbfa
SHA256 6e60d85b35f5e9222375f606e4116b38364a4a943596ddb0d914cf1cf4791774
SHA512 2a9eb63837db128c9e036976d903ebd925e6952ab6bf4efa0e370e79f9fefe0ed6e44e4ab444f56ace1149f4dd14797f568e8827e7cebd1e5581dcf309f9745a

C:\Windows\SysWOW64\RBFOCL\MPJ.004

MD5 1d0ec851016d5fb4ddc9b6029f2d4a70
SHA1 e1de265adfa3ddd10e9289c2fe4443031511d66b
SHA256 0c24ba7d44d32f43f27dd5e08b12a970fe5d73160e1819f920ab8aeca7e27213
SHA512 72d7ab8d65c7855a0e570e7f2bbb452d363597addc70b1cb79ac8a1592ff3e54c632ece5d96c0f90d1847becef8cf60d7a23952173df408592e9ec3c937877e9

C:\Windows\SysWOW64\RBFOCL\MPJ.002

MD5 246761f047f6aa98d6eaad66a2f883b9
SHA1 42474a5b23d03e094103b62fd7e820457cf807c4
SHA256 3774021a3cdf32d23fd5921cea4de8c26b08f0d601f3097550a7e8af7b00f111
SHA512 d39d0913975ca2f8d585b72667d76de09ce7817f6de26ef21a8b62edc25d7fab39785f036992d19ca5700f5fc2ee377e696142c41529f23f503e8eefff393144

memory/464-16-0x0000000000B40000-0x0000000000B41000-memory.dmp

memory/464-18-0x0000000000B40000-0x0000000000B41000-memory.dmp