Malware Analysis Report

2025-01-22 12:24

Sample ID 240517-fqz4jaae8s
Target 4e88a40af47431ccc64cc047f655a10c_JaffaCakes118
SHA256 b92841f934adb8f8a4d611ab15dcce01b452e807c794c0f2ca9e312f5c5f956c
Tags
aspackv2 upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral8

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral9

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral7

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral10

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

b92841f934adb8f8a4d611ab15dcce01b452e807c794c0f2ca9e312f5c5f956c

Threat Level: Shows suspicious behavior

The file 4e88a40af47431ccc64cc047f655a10c_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 upx

ACProtect 1.3x - 1.4x DLL software

ASPack v2.12-2.42

UPX packed file

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-17 05:05

Signatures

ACProtect 1.3x - 1.4x DLL software

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

ASPack v2.12-2.42

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

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral8

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\启动及时雨.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\启动及时雨.exe

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\启动及时雨.exe"

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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 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 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 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/740-0-0x0000000000400000-0x000000000042D000-memory.dmp

memory/740-1-0x0000000002080000-0x00000000020B0000-memory.dmp

memory/740-2-0x0000000000400000-0x000000000042D000-memory.dmp

memory/740-3-0x0000000002080000-0x00000000020B0000-memory.dmp

Analysis: behavioral9

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win7-20240508-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\孟度斯-免装软件园.url

Signatures

N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\孟度斯-免装软件园.url

Network

N/A

Files

memory/1212-0-0x0000000000420000-0x0000000000421000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\WGSHELL.dll,#1

Signatures

UPX packed file

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3728 wrote to memory of 2388 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3728 wrote to memory of 2388 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3728 wrote to memory of 2388 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\WGSHELL.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\WGSHELL.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 14.179.89.13.in-addr.arpa udp

Files

memory/2388-0-0x0000000010000000-0x000000001000F000-memory.dmp

Analysis: behavioral7

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:08

Platform

win7-20240221-en

Max time kernel

120s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\启动及时雨.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\启动及时雨.exe

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\启动及时雨.exe"

Network

N/A

Files

memory/1340-1-0x0000000000250000-0x0000000000280000-memory.dmp

memory/1340-0-0x0000000000400000-0x000000000042D000-memory.dmp

memory/1340-3-0x0000000000250000-0x0000000000280000-memory.dmp

Analysis: behavioral5

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win7-20240220-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\jsy.exe"

Signatures

UPX packed file

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

Processes

C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\jsy.exe

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\jsy.exe"

Network

N/A

Files

memory/2092-1-0x0000000010000000-0x000000001000F000-memory.dmp

memory/2092-4-0x0000000010000000-0x000000001000F000-memory.dmp

memory/2092-2-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2092-0-0x0000000000400000-0x000000000047F000-memory.dmp

Analysis: behavioral6

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win10v2004-20240426-en

Max time kernel

133s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\jsy.exe"

Signatures

UPX packed file

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

Processes

C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\jsy.exe

"C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\jsy.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 138.201.86.20.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/2992-1-0x0000000010000000-0x000000001000F000-memory.dmp

memory/2992-0-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2992-4-0x0000000010000000-0x000000001000F000-memory.dmp

memory/2992-2-0x0000000000400000-0x000000000047F000-memory.dmp

Analysis: behavioral10

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\孟度斯-免装软件园.url

Signatures

N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\孟度斯-免装软件园.url

Network

Country Destination Domain Proto
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 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 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win7-20240508-en

Max time kernel

118s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\JSY.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2580 wrote to memory of 1512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\JSY.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\JSY.dll,#1

Network

N/A

Files

memory/1512-1-0x0000000010000000-0x0000000010088000-memory.dmp

memory/1512-0-0x0000000010000000-0x0000000010088000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win10v2004-20240508-en

Max time kernel

92s

Max time network

94s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\JSY.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4764 wrote to memory of 3212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4764 wrote to memory of 3212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4764 wrote to memory of 3212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\JSY.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\JSY.dll,#1

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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/3212-0-0x0000000010000000-0x0000000010088000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-17 05:05

Reported

2024-05-17 05:07

Platform

win7-20240508-en

Max time kernel

122s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\WGSHELL.dll,#1

Signatures

UPX packed file

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2284 wrote to memory of 2084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\WGSHELL.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\jishiyuwaigua\及时雨7.75稳定版\WGSHELL.dll,#1

Network

N/A

Files

memory/2084-0-0x0000000010000000-0x000000001000F000-memory.dmp