9abd5b43e9674dbadcbabb12bda4cf76b7c557bdd89098d10df4cf6f742b1159

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 02:39

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General

Target

2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe
Size

49KB
MD5

e983b38689e6f4e0c6bc238486c42416
SHA1

47f5e4a111328659b09bf7fe98cccb71c6f58b89
SHA256

9abd5b43e9674dbadcbabb12bda4cf76b7c557bdd89098d10df4cf6f742b1159
SHA512

d94246886ce378dd0f9a907be428403283d2f792375c74362edb5bfe947978a47fe32c26a9a655a7717ce287c77737dfa2a117f34b7e9e8f3bd0af86e629757b
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakN3:V6a+pOtEvwDpjQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
376	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 460 wrote to memory of 376	460	2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe	86
PID 460 wrote to memory of 376	460	2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe	86
PID 460 wrote to memory of 376	460	2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_e983b38689e6f4e0c6bc238486c42416_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:460
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:376

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
49KB

MD5
5105e0090ae6d6c998f6491f59f0f7aa

SHA1
a1b0a96afcca825ae8ee2ae9fb798b500bc7f0d9

SHA256
0f114780913575f26169c07a9e00163232eafc4f6c95eafc221b4f295ba3baf1

SHA512
280f6b8296af3d333875c3666a93780000ca3fe3240af55dca40869b8a661f653b032aa92d2eb0ef46e707e2f13699aef55cec7d81970200eb1d5696d394d445

Download Submit
memory/460-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/460-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/460-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download