aaf8f89d5c75c565ef42543fd72fc36e7f372ac09d1fa8b7cdf55d9990859c50

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 04:58

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General

Target

2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe
Size

85KB
MD5

6998ee2898771776c806445d7431a5ef
SHA1

c323b4b66bb131685962057e6df9fc760a927375
SHA256

aaf8f89d5c75c565ef42543fd72fc36e7f372ac09d1fa8b7cdf55d9990859c50
SHA512

e0f427747d8f73839c216544e9df0db0c5c6691a62cec3258f8871c536bdb6c45b79c8aa7e6ed84476dcd6f035fc7c62e218971b7b563615f48de04c33b21b83
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6a/:V6a+pOtEvwDpjvpL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b7f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b7f-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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3472	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 1172 wrote to memory of 3472	1172	2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe	83
PID 1172 wrote to memory of 3472	1172	2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe	83
PID 1172 wrote to memory of 3472	1172	2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_6998ee2898771776c806445d7431a5ef_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3472

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
85KB

MD5
7e6c8b6c6c9660ec5eee3aca1d49302b

SHA1
4b928f81777fdf425de605d5d590bb2c4277c861

SHA256
c02bed3e1d3db53c3375d1d973178682fe8826b16983e03bdf6ed8e62233ff36

SHA512
30461c74d06fe7d4bfea245bd008e7cdad77853818b857a8bf01cc5c2e47486a68a6c0eb44dd5f305e0d18cb4dd093ca47272376a3d56f4425b7a92f598fb457

Download Submit
memory/1172-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1172-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1172-8-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3472-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3472-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download