Malware Analysis Report

2024-08-06 11:03

Sample ID 231227-n3yegahafk
Target 2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e
SHA256 2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e
Tags
cobaltstrike 100000000 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e

Threat Level: Known bad

The file 2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 100000000 backdoor trojan

Cobaltstrike

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-27 11:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-27 11:55

Reported

2023-12-27 11:58

Platform

win7-20231129-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e.exe

"C:\Users\Admin\AppData\Local\Temp\2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-27 11:55

Reported

2023-12-27 12:00

Platform

win10v2004-20231215-en

Max time kernel

168s

Max time network

187s

Command Line

C:\Windows\Explorer.EXE

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

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
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3976 wrote to memory of 3592 N/A C:\Users\Admin\AppData\Local\Temp\2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e.exe

"C:\Users\Admin\AppData\Local\Temp\2aee2a36ad7f4a9ad5e7b0e719123426181cad19a993ae68e661aa1104670a6e.exe"

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 149.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 yj233.eu.org udp
US 104.21.52.224:8443 yj233.eu.org tcp
US 104.21.52.224:8443 yj233.eu.org tcp
US 8.8.8.8:53 224.52.21.104.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 104.21.52.224:8443 yj233.eu.org tcp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 89.16.208.104.in-addr.arpa udp
US 104.21.52.224:8443 yj233.eu.org tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp

Files

memory/3592-0-0x0000000002870000-0x0000000002871000-memory.dmp

memory/3592-1-0x000000000B830000-0x000000000BC30000-memory.dmp

memory/3592-2-0x00000000085F0000-0x000000000863F000-memory.dmp

memory/3592-3-0x00000000085F0000-0x000000000863F000-memory.dmp