f0e71b2cf3255b1acba7b8472a0aed2a883c77bcb36f790113a41988dfaeab70

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 01:16

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General

Target

2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe
Size

41KB
MD5

e81ba2ea13f21629be95b3802899170c
SHA1

d3b1833b5b6db1cf9d9a0dba7f9d91b3479847fe
SHA256

f0e71b2cf3255b1acba7b8472a0aed2a883c77bcb36f790113a41988dfaeab70
SHA512

2a5e82153d2d7dbd901c1825d1838499e7e02ce4cdbb2eecac8287aed0e2ca2a983bd2a971c16c448265f08315cf24d52d6052c6ca0cac57aefd1355c40c977d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqvh:bxNrC7kYo1Fxf3s05rwxbFch

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002322f-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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2964	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 4936 wrote to memory of 2964	4936	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	87
PID 4936 wrote to memory of 2964	4936	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	87
PID 4936 wrote to memory of 2964	4936	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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
b1455318176c3dcad4c53f558db3a4f4

SHA1
7b7adcf36c6b3be9161a2ef742ea1135cededf1e

SHA256
818803d9487ddb0a7473179be09334be81ea8dceff7fb8b639f925cf208df59f

SHA512
9a82587d5d4f83f5c1a2b48e99c4badbe19b777abba74bc7fb54bcc93dc60f0669fafc96a05a690675a987b458887181074bf7836356c7eb8fb75f0c69ca00bb

Download Submit
memory/2964-17-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4936-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4936-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4936-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download