169a9750890b2e2ac3f197b6f8ed7a6e0075c4d32134f22a0f19446e77548ded

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 15:15

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General

Target

2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe
Size

45KB
MD5

e2728dd0c81d71955fd4aff6997c7042
SHA1

5390e88c778fbbb219d0196e9ccb10507d2151a9
SHA256

169a9750890b2e2ac3f197b6f8ed7a6e0075c4d32134f22a0f19446e77548ded
SHA512

a9ded1f6723aab9a3db6b1794cb5d2a901dc5c2cca54868ba6fd0198a4a2b20632560237534cf7a5d74947b84f1698406b64b51c58ff6c4508d31e6d67ce494b
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8k:bm74zYcgT/EkM0ryfjPdQZk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2216-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023278-13.dat	CryptoLocker_rule2
behavioral2/memory/2216-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1980-25-0x0000000008000000-0x000000000800D000-memory.dmp	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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1980	hasfj.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 2216 wrote to memory of 1980	2216	2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe	83
PID 2216 wrote to memory of 1980	2216	2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe	83
PID 2216 wrote to memory of 1980	2216	2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_e2728dd0c81d71955fd4aff6997c7042_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1980

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

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Downloads

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

Filesize
45KB

MD5
25baf13b084fe16b0dbeba577e20dc6b

SHA1
c4c109435433200e0bb147531b48186aa1b3e8b7

SHA256
5086a919c6c244e1d6f5c737c8d13d1be327af387c1c7c59f140f7f46dfbd1dd

SHA512
c2b138dedc76772571615fdb182602552fa876326e91935ae212de839ea831a01466f53637088bf402d8e1d45272170778722977fb65c3bf2720017421a94011

Download Submit
memory/1980-19-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/1980-25-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2216-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2216-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2216-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2216-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2216-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download