ffd02132783e7bae8534e18e92e41953ca72576d01ffd4ba0920ae1c98c02413

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 13:55

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General

Target

2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe
Size

42KB
MD5

9635892324429cd18feb339ae78f51be
SHA1

495be9cf04a0e572800e10c5a326494dc74b5f4a
SHA256

ffd02132783e7bae8534e18e92e41953ca72576d01ffd4ba0920ae1c98c02413
SHA512

3f24fbfbf5cf3fddad4100fa9edf93fc5d7540ff422615dc2006083b18928e7baec0dc8b12f9e422d5dc62e4b3654d89b5b9d4f14475df67930bcbbecc3b4304
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1Z:bxNrC7kYo1Fxf3s05rwxbF7Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000022e4f-12.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2200714112-3788720386-2559682836-1000\Control Panel\International\Geo\Nation	2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3804	pissa.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 3204 wrote to memory of 3804	3204	2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe	80
PID 3204 wrote to memory of 3804	3204	2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe	80
PID 3204 wrote to memory of 3804	3204	2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_9635892324429cd18feb339ae78f51be_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:3804

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
42KB

MD5
56dbce3d291c22d436dd55e2ef46c7e5

SHA1
cc7aafe2ff349670e6e6e7078e410738ad9d59b0

SHA256
91cc6098714cd6ac3fbbf249fe64488dc7fa320d5526a04802ef9773f89beb53

SHA512
a82d21a25f07054f869d829ea6e56af745314846baf2617a10268a68f62b374c511ae6609f0e4624e86934c4c3ccec72d9ae2fa0c1a5fa8ce040733e27c14bd9

Download Submit
memory/3204-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3204-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3204-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3804-18-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3804-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download