f4dcdf3ad26a858e9c62c5813046772729a34f5cd38d9d1739469f23997366ce

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:53

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General

Target

20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe
Size

77KB
MD5

d5ad6fc5e49bf73103893486aead5fea
SHA1

65297d4059e9584719658de3ad83bbee279a0d3e
SHA256

f4dcdf3ad26a858e9c62c5813046772729a34f5cd38d9d1739469f23997366ce
SHA512

5bdc9ce055c40fc0fce26f0446e8a71ab9fce954f93c3f76dc149a91f824d3ccd66de068a3e60c943c8ebeaba82fd3eb5a4aa8ccef7884bbd50704c2fa534a20
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkJ:X6a+SOtEvwDpjBZYvQd2C

Score

7^/10

Malware Config

Signatures

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

Processes:

20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4080 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4080	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe

description	pid	process	target process
PID 2916 wrote to memory of 4080	2916	20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe	asih.exe
PID 2916 wrote to memory of 4080	2916	20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe	asih.exe
PID 2916 wrote to memory of 4080	2916	20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\20240522d5ad6fc5e49bf73103893486aead5feacryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4080

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
77KB

MD5
a557aef6211974a75850474e103b79e7

SHA1
9db932a0623a364ae3b1844ff2da280bf6d35917

SHA256
e5efce6d9d8ce63d4a0f397f69182174b4a0f9748d7c823336386d0118999406

SHA512
40b5078abb0214eaa5b6e7959c362662d2cf1423427e2baa0c08cb8bb1c9b3f0edbe0807bc5bd9b135da62130c6f429aaf496f926276417b7955912a1978bdfc

Download Submit
memory/2916-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2916-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2916-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4080-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4080-23-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download