ff488afe2fbae3ab2cfbd557c17d7b6f866c420e9130d8fcca3ad9a1f597effe

Analysis

max time kernel
146s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16/03/2024, 12:32

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General

Target

2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe
Size

39KB
MD5

56a2c35cabd3ea7e92b297afefaebc31
SHA1

129069df34de693c6b4105c4ecfe76e3d3cb8983
SHA256

ff488afe2fbae3ab2cfbd557c17d7b6f866c420e9130d8fcca3ad9a1f597effe
SHA512

c90b43c7a448ecb7cbba1225b7360c170c5e69131d273bff7f59e60f8af16f94823624afe7c888531241312c1a6e3484fc1894a204236007bbbbb38c76d666dc
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSx7a:X6QFElP6n+gJQMOtEvwDpjBsYK/xW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023215-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023215-12.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4308	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 1712 wrote to memory of 4308	1712	2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe	91
PID 1712 wrote to memory of 4308	1712	2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe	91
PID 1712 wrote to memory of 4308	1712	2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_56a2c35cabd3ea7e92b297afefaebc31_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4308

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
39KB

MD5
5f51016be23e616f77f47ea1f1e58a30

SHA1
aa908d62734ca03f0551369bf89ea167b1cdfae0

SHA256
3c13f20ec58a71c92565821fe7723db9b7ee797f6834412b24779951bff0cd47

SHA512
fed72a69604e584563083d92b163b20c24640f3c0c222bdf2a0e3172c55f3703b15ecdeebf4362685b381845bef9eb2d8578129c6fb9286d2f6dc74146de7123

Download Submit
memory/1712-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4308-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download