035183d8c336082843ba0871d51107530523294ef2713d1bdc71ac9a2647196d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 13:47

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General

Target

2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe
Size

40KB
MD5

8bdfc9816218f3700a83386a3cc3f7e1
SHA1

ec8726ada3e8feb001e04fc6c4857fb97ab62464
SHA256

035183d8c336082843ba0871d51107530523294ef2713d1bdc71ac9a2647196d
SHA512

7a570a1c3243f0f57821abdefd48986fdd9e6e617ebb6ba36e9a5b60c7675feeb8e7f6c0351e2a140989a749dd64864a242e6cecb94b490afeb2f295d560c78d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqJzY:bxNrC7kYo1Fxf3s05rwxbFSc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320f-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	2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4488	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 2744 wrote to memory of 4488	2744	2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe	83
PID 2744 wrote to memory of 4488	2744	2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe	83
PID 2744 wrote to memory of 4488	2744	2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4488

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
41KB

MD5
2961743ff59b9b752af8a1ae3ae45e4b

SHA1
9fea4eae4659a4ddb58d4db3831de4deec19bfdb

SHA256
6f0f2d4f49dd0f35ea1fe6921d24bcf65da9d3a99c56cb3451dad978ff6335ac

SHA512
3d4e1c222ffd0febde92087beff1a8045391960796f5a47051784409a601e90d2af656f77ffb90a53075f5bc7ba2318c86e5935f2eee201ea7e6a575bcc9170e

Download Submit
memory/2744-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2744-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2744-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4488-17-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/4488-23-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download