cobaltstrike | 405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119

General

Target

405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe
Size

1.3MB
MD5

f721d46e0049e7604741f53f79fe39a3
SHA1

2bb22da15b74e26de1ffecb81583c403f1893257
SHA256

405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119
SHA512

89bcac2c72bddc50922381b0a92dcda4a1c2ee26dd8830393a983c19f804096792aa404ff786d5cc7928cae77c448c398c4606b6f869951f92e32931a933cfe3
SSDEEP

24576:R0FGMqzFkMiE4nAcQB2kWf65NShgDAzkxFPh3kEpS:e+Fk+MHn6/SKDIkxxh3

Score

10^/10

cobaltstrike metasploit backdoor persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/shikata_ga_nai

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Executes dropped EXE 1 IoCs

pid	Process
3076	theYNC.com.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "\"\""	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 732 set thread context of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe
732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 3076	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	82
PID 732 wrote to memory of 3076	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	82
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83
PID 732 wrote to memory of 4544	732	405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe	83

C:\Users\Admin\AppData\Local\Temp\405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe
"C:\Users\Admin\AppData\Local\Temp\405038bb905e5740fb8363dfdc8b03a7d40d7ea80715bb5697a65a0fbcd45119.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:732
- C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe
  "C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe"
  2⤵
  - Executes dropped EXE
  PID:3076
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\Cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\Cvtres.exe"
  2⤵
  PID:4544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe

Filesize
245KB

MD5
f356cb1e06242e5f221aa20cf33a044a

SHA1
75715369757ea20f51791a4c5fb3e6daf407611a

SHA256
648cfca36bcd7ad8ae0cb623a7edf04196b7490eebec364b586fb37428214f96

SHA512
cd6673482fa6c7d0070f54d53932781a8e27537cd18b067488b607d3f3cb88c88754e5f3ec499b207ef210ca0e3e4b687a7a9eb09fe11f0123ed5b0742aa5a34

Download Submit
C:\Users\Admin\AppData\Local\Temp\theYNC.com.exe

Filesize
245KB

MD5
f356cb1e06242e5f221aa20cf33a044a

SHA1
75715369757ea20f51791a4c5fb3e6daf407611a

SHA256
648cfca36bcd7ad8ae0cb623a7edf04196b7490eebec364b586fb37428214f96

SHA512
cd6673482fa6c7d0070f54d53932781a8e27537cd18b067488b607d3f3cb88c88754e5f3ec499b207ef210ca0e3e4b687a7a9eb09fe11f0123ed5b0742aa5a34

Download Submit
memory/732-132-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/732-143-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/3076-142-0x000000001C650000-0x000000001D086000-memory.dmp

Filesize
10.2MB

Download
memory/4544-137-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/4544-139-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/4544-140-0x0000000000400000-0x00000000004EEB38-memory.dmp

Filesize
954KB

Download
memory/4544-141-0x0000000000A00000-0x0000000000AE0000-memory.dmp

Filesize
896KB

Download

Analysis

Sharing