d71256539198efecedbaa2513e1c159e0efeb832a327a6624a412f99170915d6

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
16/05/2024, 22:22

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General

Target

2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe
Size

49KB
MD5

263ce7f27a77bcd37c7ebb460909c043
SHA1

47aeb0dbd707fda7070d644e4603f34aa9054e57
SHA256

d71256539198efecedbaa2513e1c159e0efeb832a327a6624a412f99170915d6
SHA512

6b49388abd69553256fc58341716552be4257b7b4013673c5694af6d801b25e323cb4816b9be155a18b9d953cf39ce9468403669274daac5abf29a14c3610e4b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfm:X6QFElP6n+gJBMOtEvwDpjBtEdXfm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4144	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 3116 wrote to memory of 4144	3116	2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe	84
PID 3116 wrote to memory of 4144	3116	2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe	84
PID 3116 wrote to memory of 4144	3116	2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_263ce7f27a77bcd37c7ebb460909c043_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4144

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
49KB

MD5
f767d9b0fe35d1b01832a12e7013b8ac

SHA1
cb8448390e2b2e1f80f6bc444d7bbd4c6832c1a9

SHA256
2644e7ed0ab7bd34d38ccc02ca44016d57d609974b19d2dae1e5bd9243950afd

SHA512
5f6ecf15fb160d9cd0ceed4e84f8c88ac4773bab17f92b406b1556e225fea4930be62ed3e13bd2068fa7675eed29bd9faca7e8a4c426d2a38d4a2a66bacbf9a6

Download Submit
memory/3116-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3116-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3116-8-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4144-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4144-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download