213d190907cce9fb2a2cceb05c3fdefc6814ec4e752a20c89beb59d1b93fac2a

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/05/2024, 00:24

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General

Target

2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe
Size

53KB
MD5

20796e9be6bd218543b627306983f12e
SHA1

b1aa48abe997fd3f5fc64fc4e198591a1759b1d3
SHA256

213d190907cce9fb2a2cceb05c3fdefc6814ec4e752a20c89beb59d1b93fac2a
SHA512

887e0402e9840418af3eed32cc854650f5b67106357cec9e29edd4a04864347e34d2dcbc78640b1cc5d0be18db5fac449e546b82ba128ddde7824c8f2ab89738
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTCFWpzgVor:X6QFElP6n+gJBMOtEvwDpjBtELVC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	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 3868 wrote to memory of 3024	3868	2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe	81
PID 3868 wrote to memory of 3024	3868	2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe	81
PID 3868 wrote to memory of 3024	3868	2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_20796e9be6bd218543b627306983f12e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3868
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3024

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
53KB

MD5
7d9ccb1051e7f13b5692adeca7e41bd4

SHA1
49330502fc1b743b348f1a1bbd7f97dbfb0957c2

SHA256
37f50c07a01703ddcccbd7687a446739ae5dc5a74ef7470d4d6a0052c0b99ff4

SHA512
e75544b52d43e80f445cbb8605c288d0708375aeee534dfc2c055b149d28821764c51bacfe3b1a0fb29fca5d1e2c508b53763bd8eea3e256a74b3a00c51412ad

Download Submit
memory/3024-17-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/3024-23-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/3868-0-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/3868-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3868-8-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download