b206eb2701c85f1524b9cf0a9a256727701515d8f35f4ca6620826064a8e6307

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 09:45

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General

Target

2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe
Size

60KB
MD5

6260640b4de412ca3bd7e1768413bea5
SHA1

5667fab9270bc1fb009f7f2ef92ad1ccd3c7a3e6
SHA256

b206eb2701c85f1524b9cf0a9a256727701515d8f35f4ca6620826064a8e6307
SHA512

7f40c00022afc1a81aaf3ae31eb0e34008dc9458e59decb81cc755117efc117d2bf007d0a9e80407265799b87b51b39bb8ed6f5c94280453a8f5c8b23742fea1
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbt5W:V6a+pOtEvwDpjvP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000022f40-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000022f40-12.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-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation	2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3176	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 5108 wrote to memory of 3176	5108	2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe	85
PID 5108 wrote to memory of 3176	5108	2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe	85
PID 5108 wrote to memory of 3176	5108	2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_6260640b4de412ca3bd7e1768413bea5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5108
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3176

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
61KB

MD5
cd3c9a301df5cfbdc37028169565bbc7

SHA1
624a739cc11bfa297662dd03b3bbe6121a6c28fc

SHA256
881777caccffa5bbd4aa200c3683f449708424ba40098d2d0d5ae33abdc92eec

SHA512
392047a2c16e071c449ffc821766dedded56bbc9e7c7716aafe256725a887f231ea42eb7ba0c7af92258974107cdbbad698fda28240bb1f274fad2e7d5e90e6e

Download Submit
memory/3176-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3176-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5108-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/5108-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/5108-2-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download