de5dee408d3ba7f37bddc495cd5381286cb7bab855c3aaa4a4367726fa7510e6

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08-04-2024 10:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe
Size

61KB
MD5

bd2603c9403d5f74d84e14351e0d5248
SHA1

4d3cd35d9845c7c8d59761738a3471b8aadcc4ad
SHA256

de5dee408d3ba7f37bddc495cd5381286cb7bab855c3aaa4a4367726fa7510e6
SHA512

43f2b97b6e7434c746f909180d86c55d5e8fa8cd91639d7d69a6ba36a9f1ef0f0c6ff0a504c4297c9bb605bef8c2d96a5b074acc1e59b19afe94213cc6de7d58
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/A:X6a+SOtEvwDpjBrOY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320d-12.dat	CryptoLocker_set1

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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4472	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 4472	2792	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	86
PID 2792 wrote to memory of 4472	2792	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	86
PID 2792 wrote to memory of 4472	2792	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
61KB

MD5
c9a0702718c3851b35e4355a3d027292

SHA1
f3d90e22fa618ed0d6753ce5edda71840a748f24

SHA256
096c1d8c6a1e1fe09fce999b34d82ec269689bab900048a298a419165f379a0f

SHA512
6743a2e04f36ceea92192081fc121adbe053cd8a4bb0fbf90e577398df7cf396256b5435d4f5c9aea32f50c10d35ba6b03f48a807e43f766f4217b8c4d2b117d

Download Submit
memory/2792-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2792-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2792-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4472-17-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/4472-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download