c1af2b8b6a2536d76c6ab83f871425889ed13c298d25975bc652465362016deb

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2024, 22:37

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General

Target

2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe
Size

124KB
MD5

9b2d17130609f13073e8d1f7d4f3c564
SHA1

66afa76c80644a713a241c9d60b906b27a3201ec
SHA256

c1af2b8b6a2536d76c6ab83f871425889ed13c298d25975bc652465362016deb
SHA512

881aaa80a719f6fc5f22fa84e945570f1f5ac241d80753e5a69f4327efbdd20c27ca8878f139fac6c2b84b6cb337ca805b9bc1c96247f417847c1d7061587b5e
SSDEEP

768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTZ+msK:gUj+AIMOtEvwDpjNbwQEIPlemUhYp60H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1492	misid.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 5116 wrote to memory of 1492	5116	2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe	88
PID 5116 wrote to memory of 1492	5116	2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe	88
PID 5116 wrote to memory of 1492	5116	2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_9b2d17130609f13073e8d1f7d4f3c564_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1492

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\misid.exe

Filesize
124KB

MD5
629c14fd7deca5f679793766e3b75377

SHA1
01a403d3edc58e2d097fda75d1ff2ec88e88b44f

SHA256
77e1c16ed90076e523ebaebfc81961bea6f52ce26ad3c15c2a66aef2ea3387a5

SHA512
630c80cf0f3b3606a96405ca67b4916379ab316053c8c935e8fda5fd51e1e581ab2eb652162f1153f30f60719ef2804eeeeb43d8cf87d31afa76677f0015b21a

Download Submit
memory/1492-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1492-20-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/5116-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5116-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5116-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download