cobaltstrike | 4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892 | Triage

Analysis

max time kernel
142s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
04-07-2022 07:47

Sharing

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General

Target

4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe
Size

1.2MB
MD5

8b6938536b6655804d9b7033c4a6eeb1
SHA1

a420debbedfe2fbee3390691e312a272c2709a00
SHA256

4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892
SHA512

acf6a465d0a324fe98d71493233ae47fdebd57f09838bd24ee601116306b5ee329e572c2499ae14d4f7801a96db78bf7c299f29803f49b78d387c46853d31606

Score

10^/10

cobaltstrike backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

C2

http://61.128.96.87:8088/9vTZ

Attributes

user_agent
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4264 884 WerFault.exe notepad.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe

description	pid	process	target process
PID 1864 wrote to memory of 884	1864	4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe	notepad.exe
PID 1864 wrote to memory of 884	1864	4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe	notepad.exe
PID 1864 wrote to memory of 884	1864	4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe
"C:\Users\Admin\AppData\Local\Temp\4993b27d2371e1595d4fa7f5030c1d34812b0fa689faee4e4e28049dfbeb3892.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1864

\??\c:\windows\notepad.exe
c:\windows\notepad.exe
2⤵
PID:884

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 884 -s 840
3⤵
- Program crash
PID:4264

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 444 -p 884 -ip 884
1⤵
PID:4316

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/884-130-0x0000000000000000-mapping.dmp

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