cobaltstrike | 94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6

Analysis

max time kernel
148s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-04-2024 07:20

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General

Target

94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe
Size

315KB
MD5

36eed47751bc04ee9fb82d3f0e836239
SHA1

e17fbeefbdca5b0a87393f031479e35cd38d8a68
SHA256

94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6
SHA512

b0a76342e605cfa95940cb41f61579a8bd2fb347521a6c10a34fc526546abbdc721ec499a8e9c422137eced2a9ad966c69e1ace7ba976e059e273838f8ce3066
SSDEEP

6144:SCGaECnpAoDO1A8dg3iTPJLMfgQZX+tJs0dxm:DGHCnaomAEg3uPdkgOX+tZdxm

Score

10^/10

cobaltstrike backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

http://192.168.209.130:80/6Uco

Attributes

user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; BOIE9;ENUS)

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike

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

Processes:

94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

Executes dropped EXE 1 IoCs

Processes:

artifact.exe

pid process

4636 artifact.exe

pid	process
4636	artifact.exe

Drops file in Windows directory 5 IoCs

Processes:

94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

description	ioc	process
File created	C:\Windows\__tmp_rar_sfx_access_check_240662328	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe
File created	C:\Windows\artifact.exe	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe
File opened for modification	C:\Windows\artifact.exe	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe
File created	C:\Windows\1.txt	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe
File opened for modification	C:\Windows\1.txt	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

2532 NOTEPAD.EXE

pid	process
2532	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe

description	pid	process	target process
PID 224 wrote to memory of 4636	224	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe	artifact.exe
PID 224 wrote to memory of 4636	224	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe	artifact.exe
PID 224 wrote to memory of 2532	224	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe	NOTEPAD.EXE
PID 224 wrote to memory of 2532	224	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe	NOTEPAD.EXE
PID 224 wrote to memory of 2532	224	94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe	NOTEPAD.EXE

C:\Users\Admin\AppData\Local\Temp\94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe
"C:\Users\Admin\AppData\Local\Temp\94a7c995a3f87308dea447de9c3e84ef086fe0379d108332970bc7f2d22efed6.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:224

C:\windows\artifact.exe
"C:\windows\artifact.exe"
2⤵
- Executes dropped EXE
PID:4636

C:\Windows\SysWOW64\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\windows\1.txt
2⤵
- Opens file in notepad (likely ransom note)
PID:2532

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3928 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:4036

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\artifact.exe
Filesize
17KB

MD5
4c3a97498bc22396427d1219c0ec9f32

SHA1
cf4e60fee510fe040b68e23fd12ae862f8e9e01f

SHA256
e2f7be9ba9a6a7efedf2dbdcf4be285a3d886d54528b60a5432d5e0ba9054ced

SHA512
4e1fdc6a8d26834fcc0de67a59cda8c154ff86a219b4b3f443a6199488ceb1562bf01c14b90e049dc2cd3edc7aeee9fbedbbef83392fc305aaf84ba7f61583b8

Download Submit
memory/4636-9-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/4636-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download