82322a55098ac12894383067fee00ba032d6dc12ba2335d9ea70284f78a35928

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 03:30

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General

Target

2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe
Size

74KB
MD5

262851c30826d0aaf9e6ff067b196343
SHA1

182c1a7de45a2f9591e911a1f676f005cc1162ec
SHA256

82322a55098ac12894383067fee00ba032d6dc12ba2335d9ea70284f78a35928
SHA512

93c5730c88db7896eb0e8256fdc081a3cc699d79380251e0e483a7bfb769d258bf9e649c9e94602daa1bd45860277af14f1d5096b1e9840b96b2ae92bfbff054
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMslt:u6QFElP6n+gWMOtEvwDpjJGYQbH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002326f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002326f-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	2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3124	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 2544 wrote to memory of 3124	2544	2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe	81
PID 2544 wrote to memory of 3124	2544	2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe	81
PID 2544 wrote to memory of 3124	2544	2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_262851c30826d0aaf9e6ff067b196343_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3124

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
74KB

MD5
f9e28ca543d99578fbe3a59467b7d5b7

SHA1
92bb03f34a87e04df158286bef08011f46b30a20

SHA256
aba1e22781d5c5584c68a8bd6dcae4a7b2f8575c9cabc1b56d3ab22ce79ce38a

SHA512
e180c9cd36e3f20ed01c3f385ceeb69e91b2f7c68e5236ba0ccd533f815a6debb1f0735495aad350a8e785de9c61f838e8597a24073486707f0996ece64361bd

Download Submit
memory/2544-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2544-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2544-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3124-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3124-23-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download