fa6f76ad270e58ebace1c79e50c8c83e1e5e17a705e562caf60d0af4ebf8634e

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
21-02-2024 16:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe
Size

42KB
MD5

72c5b44a7f0a9fbb223b596c82f228d1
SHA1

435a22600bfd945f8aadf25354ba7d3c945b64cd
SHA256

fa6f76ad270e58ebace1c79e50c8c83e1e5e17a705e562caf60d0af4ebf8634e
SHA512

00bc6f9156ada3ac2ffa8d46e88f46fdeb197a60b75c150ab012914d4f7c83aa1f61b6d87442d10bdf68009629f54735921c97a58340f281933eaf5030af1164
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGF:bc/y2lkF0+BjrdF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002321a-12.dat	CryptoLocker_rule2

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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1924	rewok.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 228 wrote to memory of 1924	228	2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe	86
PID 228 wrote to memory of 1924	228	2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe	86
PID 228 wrote to memory of 1924	228	2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_72c5b44a7f0a9fbb223b596c82f228d1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:228
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:1924

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\rewok.exe

Filesize
42KB

MD5
df6218c613304ccd621e7adbb82c93e3

SHA1
bf7f4d6da555e9f4f23a7feef61da91ce5b88b17

SHA256
f6479150c25851930010808c893b613b35aa892d9120d79f6867288c2eea8437

SHA512
39cf5d96a4e577fb196ce5b56bf66d09df115cc5389fdcbe19c49c7bd3cd90739049e808fdaef740417f55f11def4f9f633abe206f1d317ccbcb5f4c289a73a9

Download Submit
memory/228-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/228-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/228-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1924-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download