Malware Analysis Report

2025-03-15 05:53

Sample ID 240628-pq3n4asdnk
Target 1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118
SHA256 0c5af79ddeb1a4998f03e43b8d3b4250fb59d9e29106297b6fe6b0bf47cfb162
Tags
vmprotect
score
7/10

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
7/10

SHA256

0c5af79ddeb1a4998f03e43b8d3b4250fb59d9e29106297b6fe6b0bf47cfb162

Threat Level: Shows suspicious behavior

The file 1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Deletes itself

Executes dropped EXE

Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-28 12:32

Signatures

VMProtect packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 12:32

Reported

2024-06-28 12:35

Platform

win7-20240419-en

Max time kernel

145s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe"

Signatures

Deletes itself

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

Executes dropped EXE

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

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\kaaya.exe C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\kaaya.exe C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe"

C:\Windows\SysWOW64\kaaya.exe

C:\Windows\SysWOW64\kaaya.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\1A206A~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 wocaocao.com udp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp

Files

memory/2124-0-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2124-1-0x0000000000400000-0x0000000000429000-memory.dmp

C:\Windows\SysWOW64\kaaya.exe

MD5 1a206a52cfbebb61e0a33a646458da8e
SHA1 65fb544477e239667b2f728c9b79a8a8471046e8
SHA256 0c5af79ddeb1a4998f03e43b8d3b4250fb59d9e29106297b6fe6b0bf47cfb162
SHA512 a9fffa2c87114c4574548d242ecf031b24a55ce6c0c7cda4cb29a8b768e547a93caef30b3dec0c3af74aa6afbe58419c1a6fa7ce0a4a91c978124eef6f02703f

memory/3016-5-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2124-8-0x0000000000400000-0x0000000000429000-memory.dmp

memory/3016-9-0x0000000000400000-0x0000000000429000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 12:32

Reported

2024-06-28 12:35

Platform

win10v2004-20240508-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\iqaiy.exe C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\iqaiy.exe C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1a206a52cfbebb61e0a33a646458da8e_JaffaCakes118.exe"

C:\Windows\SysWOW64\iqaiy.exe

C:\Windows\SysWOW64\iqaiy.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\1A206A~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 wocaocao.com udp
US 54.67.42.145:1911 wocaocao.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 54.67.42.145:1911 wocaocao.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 54.67.42.145:1911 wocaocao.com tcp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 54.67.42.145:1911 wocaocao.com tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp
US 54.67.42.145:1911 wocaocao.com tcp

Files

memory/956-0-0x0000000000400000-0x0000000000429000-memory.dmp

memory/956-1-0x0000000000400000-0x0000000000429000-memory.dmp

C:\Windows\SysWOW64\iqaiy.exe

MD5 1a206a52cfbebb61e0a33a646458da8e
SHA1 65fb544477e239667b2f728c9b79a8a8471046e8
SHA256 0c5af79ddeb1a4998f03e43b8d3b4250fb59d9e29106297b6fe6b0bf47cfb162
SHA512 a9fffa2c87114c4574548d242ecf031b24a55ce6c0c7cda4cb29a8b768e547a93caef30b3dec0c3af74aa6afbe58419c1a6fa7ce0a4a91c978124eef6f02703f

memory/1564-8-0x0000000000400000-0x0000000000429000-memory.dmp

memory/956-9-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1564-10-0x0000000000400000-0x0000000000429000-memory.dmp