d000ab68248879ca3906944ba7c384a886edf94c035205c5cb80b2884d07acf4

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 23:23

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General

Target

2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe
Size

76KB
MD5

49fbaa883c6420116155bdcef92b74bd
SHA1

c06cabdc2b0c07883cb74dff10831f579bccf8d4
SHA256

d000ab68248879ca3906944ba7c384a886edf94c035205c5cb80b2884d07acf4
SHA512

83d1d4ab167ff29db217a67c60c4bcaf1e90826fb1dc22819ba8b72358198097fa7aa1f8703d7109f98e7bfc947af28732701f0f16e72a55117ea7aa192968a3
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsSljg:X6a+SOtEvwDpjBZYvQd2w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002291d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002291d-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	2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3208	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 3732 wrote to memory of 3208	3732	2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe	82
PID 3732 wrote to memory of 3208	3732	2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe	82
PID 3732 wrote to memory of 3208	3732	2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3732
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3208

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
76KB

MD5
80ae6b0291d66cf94f33c9342fa581d0

SHA1
7e0a2c6e0473300a3078416021403cfdb75c16b6

SHA256
e5f6f062b36c27e33581812fcaf305fecdc35db91ea98264eb66ff7c43e790dc

SHA512
41ef73c6a249dbfea5a18cbdd304115c9b529e4f8baffa49eae9d323832b53aadc182e4dfd6c34bff574b03206716410edb8ad0b99dca0a55a7d0dbd4b021762

Download Submit
memory/3208-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3208-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3732-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3732-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3732-8-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download