Malware Analysis Report

2025-01-22 19:22

Sample ID 240806-jtpzhsxfld
Target 王海明-个人简历.doc .exe
SHA256 f414d1e7d7ea2417e50acc0ae97da355c82810bc9e1efda4fa42a5fe2df49e22
Tags
cobaltstrike 1234567890 backdoor trojan 0
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

f414d1e7d7ea2417e50acc0ae97da355c82810bc9e1efda4fa42a5fe2df49e22

Threat Level: Known bad

The file 王海明-个人简历.doc .exe was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 1234567890 backdoor trojan 0

Cobaltstrike

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-08-06 07:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 07:57

Reported

2024-08-06 08:01

Platform

win7-20240708-en

Max time kernel

117s

Max time network

119s

Command Line

C:\Windows\Explorer.EXE

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe

"C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 776 -s 448

Network

N/A

Files

memory/1168-1-0x0000000004110000-0x0000000004151000-memory.dmp

memory/1168-0-0x0000000004110000-0x0000000004151000-memory.dmp

memory/776-2-0x000000013FB60000-0x000000014033C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 07:57

Reported

2024-08-06 08:01

Platform

win10v2004-20240802-en

Max time kernel

145s

Max time network

150s

Command Line

C:\Windows\Explorer.EXE

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 468 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe

"C:\Users\Admin\AppData\Local\Temp\王海明-个人简历.doc.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
CN 117.72.68.177:8527 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
CN 117.72.68.177:8527 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
CN 117.72.68.177:8527 tcp

Files

memory/3540-0-0x0000000002EE0000-0x0000000002F21000-memory.dmp

memory/3540-1-0x0000000007D30000-0x0000000007D7E000-memory.dmp

memory/468-2-0x00007FF7F72C0000-0x00007FF7F7A9C000-memory.dmp