Malware Analysis Report

2025-01-18 12:40

Sample ID 240402-n72yfshg22
Target 8c0ee1047417c73e05ff20905963357e_JaffaCakes118
SHA256 6d6ed63e357100a38b5bb4f4a256be07e34960bf25dbf0cc7d8f6b66e06d2df3
Tags
formbook cb2k rat spyware stealer trojan
score
10/10

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
10/10

SHA256

6d6ed63e357100a38b5bb4f4a256be07e34960bf25dbf0cc7d8f6b66e06d2df3

Threat Level: Known bad

The file 8c0ee1047417c73e05ff20905963357e_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook cb2k rat spyware stealer trojan

Formbook

Formbook payload

Checks computer location settings

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-02 12:03

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 12:03

Reported

2024-04-02 12:05

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

rat
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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1988 wrote to memory of 3764 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1988 wrote to memory of 3764 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1988 wrote to memory of 3764 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1988 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 1988 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LyTtZRlfdo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB93E.tmp"

C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

"{path}"

C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

"{path}"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 153.141.79.40.in-addr.arpa udp

Files

memory/1988-1-0x0000000074630000-0x0000000074DE0000-memory.dmp

memory/1988-0-0x00000000002D0000-0x00000000003A6000-memory.dmp

memory/1988-2-0x0000000004D20000-0x0000000004DBC000-memory.dmp

memory/1988-3-0x0000000005370000-0x0000000005914000-memory.dmp

memory/1988-4-0x0000000004E60000-0x0000000004EF2000-memory.dmp

memory/1988-6-0x0000000004E10000-0x0000000004E1A000-memory.dmp

memory/1988-5-0x00000000050B0000-0x00000000050C0000-memory.dmp

memory/1988-7-0x0000000005050000-0x00000000050A6000-memory.dmp

memory/1988-8-0x0000000005210000-0x0000000005224000-memory.dmp

memory/1988-9-0x0000000074630000-0x0000000074DE0000-memory.dmp

memory/1988-10-0x00000000050B0000-0x00000000050C0000-memory.dmp

memory/1988-11-0x00000000061B0000-0x0000000006238000-memory.dmp

memory/1988-12-0x0000000009F80000-0x0000000009FB4000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpB93E.tmp

MD5 5a560e66047871247de8af1279e74c2e
SHA1 d31a5bd508a8fe936a4f5972c91ba694b4ba239c
SHA256 4826ee7b9725ad506329816580219aeae4bdf869c354111d11430ea964e71dde
SHA512 fb7cce92cf6959d6729ab04c0f79d638a2385f09547247ca75d59bbbdd9e6ec0f8a20f8e73dfd64ebdcb3c6fc2d965ac294f615b00701a92737beef4b0df0b44

memory/1552-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1988-18-0x0000000074630000-0x0000000074DE0000-memory.dmp

memory/1552-19-0x0000000001A30000-0x0000000001D7A000-memory.dmp

memory/1552-20-0x0000000001A30000-0x0000000001D7A000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 12:03

Reported

2024-04-02 12:05

Platform

win7-20240221-en

Max time kernel

122s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2172 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2172 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2172 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2172 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe
PID 2172 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LyTtZRlfdo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6E7.tmp"

C:\Users\Admin\AppData\Local\Temp\8c0ee1047417c73e05ff20905963357e_JaffaCakes118.exe

"{path}"

Network

N/A

Files

memory/2172-0-0x0000000000860000-0x0000000000936000-memory.dmp

memory/2172-1-0x0000000074EA0000-0x000000007558E000-memory.dmp

memory/2172-2-0x0000000004D60000-0x0000000004DA0000-memory.dmp

memory/2172-3-0x0000000000310000-0x0000000000324000-memory.dmp

memory/2172-4-0x0000000074EA0000-0x000000007558E000-memory.dmp

memory/2172-5-0x0000000004C70000-0x0000000004CF8000-memory.dmp

memory/2172-6-0x0000000000700000-0x0000000000734000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpC6E7.tmp

MD5 104838440e89532dcfafabcf31400a63
SHA1 f843fbc4fc17a082802c23e93b65069a2f0366f0
SHA256 9e35bfee45baf8b4698b2140326a4ba5c51b25b29340b90b5cac9b376830a921
SHA512 3c6da5cc8b90da07c36de0c5676a44f616863ce794129dd285c7cdb4f1bb255b4c0e8657a86d71ffcb2da643b46ec285691940617dfd2466d780df30cd60b703

memory/2568-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2568-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2568-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2568-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2172-15-0x0000000074EA0000-0x000000007558E000-memory.dmp

memory/2568-16-0x0000000000C10000-0x0000000000F13000-memory.dmp