Malware Analysis Report

2025-01-18 12:37

Sample ID 240828-rtpyhs1hjc
Target c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118
SHA256 31c3df5957f6eb0398f72aec9d8609f6a55da6f4051ea103f53999845efc93de
Tags
formbook ph discovery rat spyware stealer trojan
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

31c3df5957f6eb0398f72aec9d8609f6a55da6f4051ea103f53999845efc93de

Threat Level: Known bad

The file c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook ph discovery rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-28 14:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-28 14:29

Reported

2024-08-28 14:31

Platform

win7-20240704-en

Max time kernel

14s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

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\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe
PID 1656 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe"

Network

N/A

Files

memory/1656-0-0x000000007451E000-0x000000007451F000-memory.dmp

memory/1656-1-0x0000000000AC0000-0x0000000000B42000-memory.dmp

memory/1656-2-0x0000000074510000-0x0000000074BFE000-memory.dmp

memory/1656-3-0x0000000000530000-0x0000000000546000-memory.dmp

memory/1656-4-0x0000000074510000-0x0000000074BFE000-memory.dmp

memory/1152-5-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1152-7-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1152-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1656-11-0x000000007451E000-0x000000007451F000-memory.dmp

memory/1152-12-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1656-13-0x0000000074510000-0x0000000074BFE000-memory.dmp

memory/1656-14-0x0000000074510000-0x0000000074BFE000-memory.dmp

memory/1152-15-0x0000000000B50000-0x0000000000E53000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-28 14:29

Reported

2024-08-28 14:31

Platform

win10v2004-20240802-en

Max time kernel

134s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

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\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c709725aada3a8083acb5cf6e6f485b1_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4448,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1600 -ip 1600

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 184

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 44.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 33.242.123.52.in-addr.arpa udp

Files

memory/2904-0-0x000000007525E000-0x000000007525F000-memory.dmp

memory/2904-1-0x0000000000F60000-0x0000000000FE2000-memory.dmp

memory/2904-2-0x0000000006050000-0x00000000065F4000-memory.dmp

memory/2904-3-0x00000000059B0000-0x0000000005A42000-memory.dmp

memory/2904-4-0x0000000005A50000-0x0000000005A5A000-memory.dmp

memory/2904-5-0x0000000075250000-0x0000000075A00000-memory.dmp

memory/2904-6-0x0000000007010000-0x00000000070AC000-memory.dmp

memory/2904-7-0x0000000006030000-0x0000000006046000-memory.dmp

memory/1600-10-0x00000000003C0000-0x00000000003EA000-memory.dmp

memory/2904-12-0x0000000075250000-0x0000000075A00000-memory.dmp