Malware Analysis Report

2025-01-22 12:25

Sample ID 240516-zsncasga9y
Target 4cf94d7212894360694c6694116e4e83_JaffaCakes118
SHA256 5622ce33912deb448253ecde4f930c717e2f6c56d0d67d7202a4a3c7b41fa67e
Tags
aspackv2
score
7/10

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
7/10

SHA256

5622ce33912deb448253ecde4f930c717e2f6c56d0d67d7202a4a3c7b41fa67e

Threat Level: Shows suspicious behavior

The file 4cf94d7212894360694c6694116e4e83_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2

Loads dropped DLL

ASPack v2.12-2.42

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Modifies Internet Explorer start page

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Gathers network information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-16 20:58

Signatures

ASPack v2.12-2.42

aspackv2
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

2024-05-16 20:58

Reported

2024-05-16 21:01

Platform

win7-20240220-en

Max time kernel

147s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe"

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2360 set thread context of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe

Enumerates physical storage devices

Gathers network information

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

Modifies Internet Explorer start page

stealer
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.naver.com" C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2988 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2392 wrote to memory of 2988 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2392 wrote to memory of 2988 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2392 wrote to memory of 2988 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 2360 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2580 wrote to memory of 2484 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2580 wrote to memory of 2484 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2580 wrote to memory of 2484 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2580 wrote to memory of 2484 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ipconfig/release

C:\Windows\SysWOW64\ipconfig.exe

ipconfig /release

C:\WINDOWS\SysWOW64\calc.exe

C:\WINDOWS\system32\calc.exe

C:\Windows\SysWOW64\cmd.exe

cmd /c ipconfig/renew

C:\Windows\SysWOW64\ipconfig.exe

ipconfig /renew

Network

Country Destination Domain Proto
US 8.8.8.8:53 r.pengyou.com udp

Files

memory/2360-2-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2360-4-0x0000000000401000-0x000000000046B000-memory.dmp

memory/2360-3-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2360-1-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2360-0-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/3004-5-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3004-12-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3004-19-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3004-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3004-15-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3004-9-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3004-7-0x0000000000400000-0x000000000043C000-memory.dmp

\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe

MD5 4cf94d7212894360694c6694116e4e83
SHA1 9f3178d0831b09fed39223395dbb558ee5f1d5f3
SHA256 5622ce33912deb448253ecde4f930c717e2f6c56d0d67d7202a4a3c7b41fa67e
SHA512 7c5d10a93dbb05588e49ac5a6e85ac402513837ac417bb1e7430f71eeeb2784d53e06667e571e42231442c27af17a141a3c3981537d13440d6e141e177c84d5e

memory/2360-21-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/2360-24-0x0000000001F00000-0x0000000001F10000-memory.dmp

memory/2360-26-0x0000000000400000-0x00000000004D4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-16 20:58

Reported

2024-05-16 21:01

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe"

Signatures

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4852 set thread context of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe

Enumerates physical storage devices

Gathers network information

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

Modifies Internet Explorer start page

stealer
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.naver.com" C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4852 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4852 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4852 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2520 wrote to memory of 8 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2520 wrote to memory of 8 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 2520 wrote to memory of 8 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\WINDOWS\SysWOW64\calc.exe
PID 4852 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4852 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4852 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 408 wrote to memory of 3360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 408 wrote to memory of 3360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 408 wrote to memory of 3360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4cf94d7212894360694c6694116e4e83_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ipconfig/release

C:\Windows\SysWOW64\ipconfig.exe

ipconfig /release

C:\WINDOWS\SysWOW64\calc.exe

C:\WINDOWS\system32\calc.exe

C:\Windows\SysWOW64\cmd.exe

cmd /c ipconfig/renew

C:\Windows\SysWOW64\ipconfig.exe

ipconfig /renew

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 216.131.50.23.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
NL 23.62.61.104:443 www.bing.com tcp
US 8.8.8.8:53 104.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
NL 23.62.61.90:443 www.bing.com tcp
US 8.8.8.8:53 90.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 r.pengyou.com udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 200.131.50.23.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa 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

Files

memory/4852-0-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4852-2-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4852-3-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/4852-4-0x0000000000401000-0x000000000046B000-memory.dmp

memory/4852-1-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/3656-5-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3656-6-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3656-9-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3656-7-0x0000000000400000-0x000000000043C000-memory.dmp

memory/4852-13-0x0000000000400000-0x00000000004D4000-memory.dmp