189b6ff339c93002160a1e640ad305b5191772be5a3129185eb65e2c2981a4f5

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2024 02:26

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General

Target

2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe
Size

49KB
MD5

17cd4089b7d715da4c694f48ba049117
SHA1

7fd8ef20768204c05a176171dbb581ba786d5f77
SHA256

189b6ff339c93002160a1e640ad305b5191772be5a3129185eb65e2c2981a4f5
SHA512

143effaab303863050c26e06614e3f304c4ead98fc1d1ba3a316c3d95d30eb32e9f2e4447a99d611dac2c211342b641287f82a3b09bc61624b9aa31b5cc905dd
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZm:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
116	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 2292 wrote to memory of 116	2292	2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe	88
PID 2292 wrote to memory of 116	2292	2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe	88
PID 2292 wrote to memory of 116	2292	2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_17cd4089b7d715da4c694f48ba049117_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:116

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
362c0c3cceab6706d904d840fabdbe68

SHA1
884deedb39fde220091ec5a90ff957d2f84c28a5

SHA256
c2e1a9ef1d917e7f4440996fab7336469f7ed838522e248a5cd413895a145efb

SHA512
5dd508ae365949a4e85fb20356eab352e83941d7721116e0dc2a1e6b43261fb584435515ca8448829f98306892886186ef50e66786f0e5b13e5b40a85305d023

Download Submit
memory/116-17-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/116-19-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/2292-0-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/2292-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/2292-2-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download