ec4f2564ce4c93ae4476c5e546be1c15f3f0e56984d46c67ecd920ed20eae652

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 22:21

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General

Target

2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe
Size

62KB
MD5

006fe831535a43c2eb50c638136dcba1
SHA1

46f709571d1c62fb1a62f9d5befc8c12c7b15d8f
SHA256

ec4f2564ce4c93ae4476c5e546be1c15f3f0e56984d46c67ecd920ed20eae652
SHA512

e0019e9fb787b49ae70df1c78fdc8f4e0f9d2d5d31f71c5170b7dbd76d376bde47f96f47b6d12033c4292b2be5673965fbfe8f345786181c92f5665f504edf6d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbt5QR:V6a+pOtEvwDpjvR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023297-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023297-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4388	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 716 wrote to memory of 4388	716	2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe	83
PID 716 wrote to memory of 4388	716	2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe	83
PID 716 wrote to memory of 4388	716	2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_006fe831535a43c2eb50c638136dcba1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:716
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4388

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\asih.exe

Filesize
62KB

MD5
c5844983fee4a3f40d449a3ab8384700

SHA1
ad3c3b9cd2c63486197689fb5c5949df60122fe7

SHA256
284cc39187b5edc812250f6c47317b1e8c82e2d5ee73e58e0053239d78433859

SHA512
6b350fcdbfd01a2621c18bbd30fc28a3dceecfc924f438736744b4d8a1fd9c32632117c98ff55dd34e322cd7699a67c9351f91b3bd7ac05d42d8ca98f02c3f01

Download Submit
memory/716-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/716-1-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/716-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4388-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4388-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download