Malware Analysis Report

2025-01-22 13:05

Sample ID 240626-chcrgs1dmq
Target 105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118
SHA256 409a315c2cb4fdc6ebb96ca836404e6a973a8ac7316240ddc34f4f116f652b44
Tags
vmprotect
score
8/10

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
8/10

SHA256

409a315c2cb4fdc6ebb96ca836404e6a973a8ac7316240ddc34f4f116f652b44

Threat Level: Likely malicious

The file 105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

vmprotect

Blocklisted process makes network request

Deletes itself

Loads dropped DLL

VMProtect packed file

Drops file in Program Files directory

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-26 02:04

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

2024-06-26 02:04

Reported

2024-06-26 02:06

Platform

win7-20240221-en

Max time kernel

144s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe"

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Deletes itself

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created \??\c:\program files\Viewer3\Gxtmp.dll C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2316 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2316 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2316 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe"

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe c:\progra~1\Viewer3\Gxtmp.dll Run

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /C DEL C:\Users\Admin\AppData\Local\Temp\105B64~1.EXE > NUL

Network

Country Destination Domain Proto
N/A 172.16.3.4:1989 tcp
N/A 172.16.3.4:1989 tcp
N/A 172.16.3.4:1989 tcp
US 8.8.8.8:53 xiejunnew.2288.org udp
HK 112.213.99.209:88 xiejunnew.2288.org tcp
N/A 172.16.3.4:1989 tcp

Files

\??\c:\progra~1\Viewer3\Gxtmp.dll

MD5 465d1999d67d24a2973ddc6b7b306564
SHA1 47721625142abe4f6546a11f05d4c7d30a18d8f9
SHA256 2b33e37cba5c2c86d1050a72a5fa6fa547b9df197818b1fcb7d453934ba3c606
SHA512 8f05f9353e117cc937f190a0341af74730d3c72cb5226c73ba3425aba6254ec3241d0ae803824d2c5f4af4b222fea55dca999e85d686f92c8446b2db2d56aa0c

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 02:04

Reported

2024-06-26 02:06

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe"

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created \??\c:\program files\Viewer3\Gxtmp.dll C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\105b64c22f1a68fbdeee77aa762020ee_JaffaCakes118.exe"

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe c:\progra~1\Viewer3\Gxtmp.dll Run

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /C DEL C:\Users\Admin\AppData\Local\Temp\105B64~1.EXE > NUL

Network

Country Destination Domain Proto
N/A 172.16.3.4:1989 tcp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 172.16.3.4:1989 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
N/A 172.16.3.4:1989 tcp
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 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 xiejunnew.2288.org udp
HK 112.213.99.209:88 xiejunnew.2288.org tcp
N/A 172.16.3.4:1989 tcp
US 8.8.8.8:53 24.173.189.20.in-addr.arpa udp

Files

\??\c:\progra~1\Viewer3\Gxtmp.dll

MD5 b76dcb4858fdc8b47c446ff00fab696d
SHA1 a6f1686583efa6e04512fa3d283be0d87551a096
SHA256 6687f4346881a813b03afd89e120a491078857f1c99a0f03ee9c2ea96728b8fe
SHA512 7b0a7fb6e8ec9d21acf98d9ad6423aba453bf0a8db1cb6aa0d7d728f390b54bd62d418d0d5f09c1361a920f335f0bc5efc10ec6b2e7dece2bd31f5130e9166c6