1f9f9ed55d30bdc66a84c3fd108d14535bca8ebf4ec30221e7ffe0296082c2ff

Analysis

max time kernel
150s
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
13/06/2024, 00:25

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General

Target

2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe
Size

43KB
MD5

085ef6aeb52d970b64156d64cf7c8bec
SHA1

d930d9408f6dadd33b66ebd8e24b04627bd67728
SHA256

1f9f9ed55d30bdc66a84c3fd108d14535bca8ebf4ec30221e7ffe0296082c2ff
SHA512

35c92250ef90dfa6c926b4bd3e573f1ccbcc429b2def24f5065a4433ae3ac462059febf393ea4335bb5b1f257ef1864308ab478f904c0f1d7551f2359aeebc23
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9A:X6QFElP6n+gJQMOtEvwDpjBmzDkWD2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3144	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 5044 wrote to memory of 3144	5044	2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe	82
PID 5044 wrote to memory of 3144	5044	2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe	82
PID 5044 wrote to memory of 3144	5044	2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_085ef6aeb52d970b64156d64cf7c8bec_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3144

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
43KB

MD5
a49eb28f4bf1e2b4a1df1ff4b98aa50d

SHA1
5d15317dd56be753aaa81a2d216849830793c6ff

SHA256
6de906aac55b33eda019e638b380ccfc7191639cd00cd485acb579f767275136

SHA512
79c2e869cf624321a3a9569f971361111bc0ffba9ceba748d41e65a74db535da3f6490af93977c64c7726d588fbd605d00a0ef328f7d746fa1592c079e5d5efc

Download Submit
memory/3144-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3144-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/5044-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/5044-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/5044-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download