8664d4c10075c3ffc69cb057e068bc8ea5eec4a7cfc6468f34a94acc3de251a1

Analysis

max time kernel
149s
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
17/02/2024, 23:25

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General

Target

2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe
Size

36KB
MD5

3314a2a02dbac60d99a70ca5163b9bf8
SHA1

a8b639596c3d3a5e430cb7255b696fb29424c4bb
SHA256

8664d4c10075c3ffc69cb057e068bc8ea5eec4a7cfc6468f34a94acc3de251a1
SHA512

1032029a06dd73b4ad99ffba14e2886db9c869fa1dc57ef119298ccb59fe94beb0b0b1ef37dc20bca1be811a8f5411f23753044b551ad99de963328074d16434
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JE5m:bxNrC7kYo1Fxf3s065m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231f9-12.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	2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2488	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 3944 wrote to memory of 2488	3944	2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe	83
PID 3944 wrote to memory of 2488	3944	2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe	83
PID 3944 wrote to memory of 2488	3944	2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_3314a2a02dbac60d99a70ca5163b9bf8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2488

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
36KB

MD5
01308dda96bbda55916d140830ab9dd4

SHA1
e236a58c546bf22f2e81f17bc40ac2a4c1f4e421

SHA256
18b7af8cb3898c0ff57ba4262e7dd9df33ce43227bae13c32eefa45d68654164

SHA512
a35457be9c8654630b10aa0e5ee6c5366a5f92866959a4098b70862dd6ccec7cacd1f4fd0da6574eea14f3525a4ab3099813e171a1f51e0a8f73747e01934abf

Download Submit
memory/2488-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2488-19-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/3944-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3944-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3944-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download