0f37cc0f2834c5ed952a5d3799be6178713ceadb786defe898f47a91d224bb57

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
01/05/2024, 05:24

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe
Size

64KB
MD5

3a010972aa3505a80ccb2d0ae950b854
SHA1

4d36470535176f9de104ce9689dda388ad16edc4
SHA256

0f37cc0f2834c5ed952a5d3799be6178713ceadb786defe898f47a91d224bb57
SHA512

95e3f20b3c73693f3ddb35b1aeb435a0a62ef6636302bb2bc5182b3c94d26b1809e39c58c0b4b07a446291f136506568e6205d5bcce12c767992f58ed4f11af2
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh85k:V6a+pOtEvwDpjvT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b56-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b56-12.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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3168	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 852 wrote to memory of 3168	852	2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe	85
PID 852 wrote to memory of 3168	852	2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe	85
PID 852 wrote to memory of 3168	852	2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_3a010972aa3505a80ccb2d0ae950b854_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:852
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3168

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
65KB

MD5
3d9e0274fc996bf97c9fae939c9e88bb

SHA1
5ecdec7465f5b9032d0ce89c931649e3baeb901e

SHA256
1348ae4517a76d0562a887c5b87a4fbb6be71c2f8647f2f633293c3aa57eda90

SHA512
63d0db5f6c0fadb6ac1ce8bf66c94585f0e70d63ac89ffdef94bb0748112453b8cdda7aa1eb2b599fd6b3f1d11f296ef68a8c1981ff1750a204d3361e8eca69f

Download Submit
memory/852-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/852-1-0x0000000000870000-0x0000000000876000-memory.dmp

Filesize
24KB

Download
memory/852-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3168-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3168-18-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download