dce0182142676cb449ff30430d565db8364b95dbf5ccbef320e10f2e05563a45

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14-03-2024 00:58

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General

Target

2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe
Size

123KB
MD5

e9688f4a9a458d74838cdbe913426482
SHA1

25191e979110b5c7f8c578bf13b29e0a3a73cd72
SHA256

dce0182142676cb449ff30430d565db8364b95dbf5ccbef320e10f2e05563a45
SHA512

72b7b9d52acad2c9675b3c126acbe5f9b61777b630bae4907c15163b91b8443d186d765f76534bc6fddf8918b4e3a9ce2c41571a57b5fd2561c60e437544cb1d
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgSuU+K:u6a++OtEvwDpj6zQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4012	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 4452 wrote to memory of 4012	4452	2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe	88
PID 4452 wrote to memory of 4012	4452	2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe	88
PID 4452 wrote to memory of 4012	4452	2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_e9688f4a9a458d74838cdbe913426482_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4012

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
123KB

MD5
470f801a2f8f59033e9fac4907875616

SHA1
7a1373e6093810e72a30ba6b76b61b3cab3fa0f4

SHA256
599573467e4875755d04d862e9b703b7bdac6949a62f0147316cf1679e47d639

SHA512
d437dffcc4890b7bb60c64da86452899634a918d4296b5bc5a85616c53aa693767507cd9d7b38f91581b1b2bb386ce2d6d243d6de9bfff8bc3c5f112fccb5646

Download Submit
memory/4012-19-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4012-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4452-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4452-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4452-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download