54af6664d1a024d23b5ef9d1e0aca1d75683ba1cee954770d372e078f8c48a65

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 23:25

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General

Target

2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe
Size

50KB
MD5

2c29923a5e2f88ecf371323a7ccb6814
SHA1

fc726689859ad04fc7f0e5a686100562721cd409
SHA256

54af6664d1a024d23b5ef9d1e0aca1d75683ba1cee954770d372e078f8c48a65
SHA512

6bb915cac33ac3acd4799971c0a03078686bb5139f64c597c360a9e3635d732d990e06cd1f4fb0e31de47d6a851772858e51fc74e3f78a4c0b3dbd3d8b84e84b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaws:X6QFElP6n+gJBMOtEvwDpjBtExmlos

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1052	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 3420 wrote to memory of 1052	3420	2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe	89
PID 3420 wrote to memory of 1052	3420	2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe	89
PID 3420 wrote to memory of 1052	3420	2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_2c29923a5e2f88ecf371323a7ccb6814_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1052

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
51KB

MD5
30c689544240060138a08576ab0b1943

SHA1
f207aa024ea7be301c3c783feabb8bab37c0ecc6

SHA256
4a601b372081a0431af0891e585a07aa2e52578da806e1f0661212c1ed39cd8c

SHA512
31bc776316477e166f6419e5d3beda96a48a5e669b4d4d627cd6607caafeb94342b7d32197f4086fdc8745b0366cbd6cd2a398c71079116684cc9b54c1f0709b

Download Submit
memory/1052-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1052-20-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3420-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3420-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3420-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download