ca0cfebdb58cf755810ccf7aa44393c6c55ee1d1d620e0360394f375d07e6146

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 11:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe
Size

47KB
MD5

32b75a47d96a526262d0422edd737eb8
SHA1

f48e6f2be411e3dd42b7a35cab6938d1dcf0e3b7
SHA256

ca0cfebdb58cf755810ccf7aa44393c6c55ee1d1d620e0360394f375d07e6146
SHA512

c94973322be740475114165a9ed2069fa913cbd33652fcd882ca536a18c921acbc4174b78238a54eb11989c1d3a3539268663fc84688d51afc34bd36388da044
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPoG:P6QFElP6k+MRQMOtEvwDpjBQpVXzG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4336-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000700000002328e-13.dat	CryptoLocker_rule2
behavioral2/memory/4336-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3384-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4336-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000700000002328e-13.dat	CryptoLocker_set1
behavioral2/memory/4336-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3384-26-0x0000000000500000-0x000000000050B000-memory.dmp	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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3384	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 4336 wrote to memory of 3384	4336	2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe	82
PID 4336 wrote to memory of 3384	4336	2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe	82
PID 4336 wrote to memory of 3384	4336	2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_32b75a47d96a526262d0422edd737eb8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3384

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
47KB

MD5
cbdf4b247b87d50f451ca56ab765c56f

SHA1
7828c3aee6d76efb173f5513f4689d73b19122ac

SHA256
18d0a1876a72f97c713cbf5c75d648e4fb603f000729409aaf227e7ced3645fd

SHA512
fd2b591f9f89b27fb4cb730d2aa14dbf6c920f6b318737c98fc410b7eb56851ec451244738f22f0060df1a61c20caeac93a195a5ebac399507614e50e6952f02

Download Submit
memory/3384-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3384-19-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/3384-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4336-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4336-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4336-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4336-9-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4336-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download