01627ab0ce91c17b90b7e58e744adac0b6caa2cf2880afb6e8dbb0c5ac41c550

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27-05-2024 08:25

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General

Target

2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe
Size

48KB
MD5

5f454b4fc85e8d2569a80b4672dbcf29
SHA1

8198246090632abc2c4d33e07adf2992f335a59c
SHA256

01627ab0ce91c17b90b7e58e744adac0b6caa2cf2880afb6e8dbb0c5ac41c550
SHA512

9a1eaf1eb9d382b6061abfd824f32f10b5dc570a6bd97e54cf2fb286954ea339c49366d7a64cbf03e75f9cb77c82c2a7b35a03044f72590c7f0fb408535a0d8f
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blv0:X6QFElP6n+gJQMOtEvwDpjB0GIWSlv0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022f3c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022f3c-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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1576	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 4624 wrote to memory of 1576	4624	2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe	81
PID 4624 wrote to memory of 1576	4624	2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe	81
PID 4624 wrote to memory of 1576	4624	2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_5f454b4fc85e8d2569a80b4672dbcf29_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1576

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
48KB

MD5
346683752f29e2ab0c26df3441e6f58d

SHA1
c4d37c0621e16d67bc935dd34bfdc720ccde724b

SHA256
8d80c60eb1006c2805e3bad6c5cd80dc43f83f770f54f2f704784ceedf7f33b8

SHA512
d710967ca1a4dff219b9a9ec6babadfc308e7f317051e2b4e161cae1b6970ea723ab75602fbe1ad66085a4a6c8e012d8d9ee091f91dba5d184e28b573f7f6af0

Download Submit
memory/4624-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4624-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4624-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download