Malware Analysis Report

2024-10-23 22:16

Sample ID 240507-nt3b3aha36
Target 2076f3389e743659dcb4daef802479f3_JaffaCakes118
SHA256 faf0518430f6333ff6fe2e3c51bb69cd3a1be29511aaa8b568b96945b4ff18ed
Tags
formbook cu rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

faf0518430f6333ff6fe2e3c51bb69cd3a1be29511aaa8b568b96945b4ff18ed

Threat Level: Known bad

The file 2076f3389e743659dcb4daef802479f3_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook cu rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-07 11:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-07 11:42

Reported

2024-05-07 11:44

Platform

win7-20240221-en

Max time kernel

121s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\win.ini C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe N/A
File opened for modification C:\Windows\win.ini C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe"

Network

N/A

Files

memory/2984-3-0x0000000077641000-0x0000000077742000-memory.dmp

memory/2984-4-0x0000000077640000-0x00000000777E9000-memory.dmp

C:\Windows\win.ini

MD5 d2a2412bddba16d60ec63bd9550d933f
SHA1 deb3d3bdc9055f0b4909b31d3048446848fae0e1
SHA256 79ff2254e38192be1626d05bec6c82e10c85e1cf91df7440c4c443380a1e877a
SHA512 8fecada107f72e59e43a689eeb8e2e18fa6134d0941c122025ed5bd00e5eab8114d7125bd289505be75641385a0c3f112d402c693f142c3ddc870d5fa8116e31

memory/820-12-0x0000000077640000-0x00000000777E9000-memory.dmp

memory/2984-11-0x0000000077830000-0x0000000077906000-memory.dmp

memory/820-10-0x0000000000290000-0x0000000000296000-memory.dmp

memory/820-9-0x0000000000400000-0x0000000000467000-memory.dmp

memory/820-15-0x000000001FD60000-0x0000000020063000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-07 11:42

Reported

2024-05-07 11:44

Platform

win10v2004-20240419-en

Max time kernel

134s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\win.ini C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe N/A
File opened for modification C:\Windows\win.ini C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2076f3389e743659dcb4daef802479f3_JaffaCakes118.exe"

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 97.17.167.52.in-addr.arpa udp
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 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 75.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 142.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/4848-3-0x0000000077551000-0x0000000077671000-memory.dmp

C:\Windows\win.ini

MD5 6bf517432f65eb7f0d18d574bf14124c
SHA1 5b9f37c1dd1318ebbec3bd2f07c109eb9d22c727
SHA256 6e2b70dfccabf3cc651545676a3a566c9cfae03f15f772886646abce1da35b46
SHA512 7b0cb8c20034585ec8bf4b45eda5eda5993a56e24931a7426dc5a9f081ec1f82545f3e26a48a4df885c8691fc6e8026d0808aebe3cc3358ba85ddca08ac4cb06

memory/4680-9-0x0000000000630000-0x0000000000636000-memory.dmp

memory/4680-8-0x0000000000400000-0x0000000000467000-memory.dmp

memory/4680-11-0x000000001FFB0000-0x00000000202FA000-memory.dmp