6aede6a6fba8ad489ad3ab8032dc497b2ba490064bf6c9aa4508f9499981214b

Analysis

max time kernel
146s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 17:56

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General

Target

2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe
Size

37KB
MD5

f24e2be2c5680bcbb7684e94500fef89
SHA1

a14b765d29ef4b6908726058f6a9995c72a8f6f6
SHA256

6aede6a6fba8ad489ad3ab8032dc497b2ba490064bf6c9aa4508f9499981214b
SHA512

0fdf114820b69b49d8d63232e324b192707d563988810e4fc91ec8f2f896926fb30d0f400da333bdc2767a488412b0d3c5236968557bf977ea924240866c8a9a
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3s:bxNrC7kYo1Fxf3s06gm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\pissa.exe	CryptoLocker_rule2

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

Processes:

2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

pissa.exe

pid process

1460 pissa.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1460	pissa.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe

description	pid	process	target process
PID 2544 wrote to memory of 1460	2544	2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe	pissa.exe
PID 2544 wrote to memory of 1460	2544	2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe	pissa.exe
PID 2544 wrote to memory of 1460	2544	2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe	pissa.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2544

C:\Users\Admin\AppData\Local\Temp\pissa.exe
"C:\Users\Admin\AppData\Local\Temp\pissa.exe"
2⤵
- Executes dropped EXE
PID:1460

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\pissa.exe

Filesize
37KB

MD5
3040ab31edd563aa4e1ca8b0d8bec106

SHA1
4858518d9ad7ef8f1b663e8cdcbe408d95cded49

SHA256
1625760561714eae89c0aa3d6ed7453e173f442eb3018f8f1c4836d1d3d47cc8

SHA512
8ca2b704d2e69aba74377722806ac12bf982780bf3435b0cbd966533d3e29fd297dc418f902c4f43ddd35798a54003baec79416493e03487c0d1909e94d8c0c6

Download Submit
memory/1460-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/1460-23-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/2544-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/2544-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/2544-2-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download