27dc023684cbd945e3febdb2b78762fccb6cdfd37c89ba2ccbf1ed4a464c5c17

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 15:34

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General

Target

2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe
Size

40KB
MD5

6bc4594d9528d612d427a57b9498570e
SHA1

5eb00f23e199f8b780bf8a695955a76502bb5fd9
SHA256

27dc023684cbd945e3febdb2b78762fccb6cdfd37c89ba2ccbf1ed4a464c5c17
SHA512

befbf9cc02ba5bc8302decaf0f3a087d681f4b21b03b8a2c773957dc4951ec4167c05ba4a0ff43c415bd31d1b55f4de8922deb3914ec4db47b32410e80089b7f
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1bhO:bxNrC7kYo1Fxf3s05rwxbF7FO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002311a-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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4836	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 3080 wrote to memory of 4836	3080	2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe	83
PID 3080 wrote to memory of 4836	3080	2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe	83
PID 3080 wrote to memory of 4836	3080	2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_6bc4594d9528d612d427a57b9498570e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4836

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
40KB

MD5
6a8b2f067b9f5d97194e3a2469b4a662

SHA1
9bf6b4bbdada2dae897cd28fcaa5d51e0b388b46

SHA256
ab58e152b21e5abc7810d0b205637dfdcd74c400636475fea15409938915da30

SHA512
8d6628586f4379725db317b2a362b551329c70b444a26134eb0a3442de5344b4ae64e1ec172c52c8232d5169e549e0a14d7570dd697461e4a385459502e2d78d

Download Submit
memory/3080-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3080-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3080-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4836-18-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4836-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download