8e9da85fe5706b4ed06ab8ecb185546435cb58046986b5dcbef175e145f47d26

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30-04-2024 05:37

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General

Target

2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe
Size

45KB
MD5

ed90487094ee61c2a730ce5ab9f13c15
SHA1

b582df9406f6f81a7c30ef03b14795ad59ee61c4
SHA256

8e9da85fe5706b4ed06ab8ecb185546435cb58046986b5dcbef175e145f47d26
SHA512

6850c27dc24dc2ec85e0c83341698ab7c76d35110e05afba71dca3086782049d5c221f7f12a228a556820ae38cb62af49dff0354b007b0274c67612d263d1433
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1Yvb9wAm:bxNrC7kYo1Fxf3s05rwxbF7YvbQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b6a-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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4856	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 2336 wrote to memory of 4856	2336	2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe	83
PID 2336 wrote to memory of 4856	2336	2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe	83
PID 2336 wrote to memory of 4856	2336	2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_ed90487094ee61c2a730ce5ab9f13c15_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4856

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
46KB

MD5
d93aac43cc5f11780e4385040726e2b6

SHA1
8a0fb8fd9a77b72cbffd95a1deaeff9e18765041

SHA256
c1272495db02537b718f59633c51a9105fb2d1a2969ab263888e1bcfabdb1894

SHA512
a7f0f1c7ffaecbcf9a9b6773bd40339696e02815fe79db8fc93e3631e578daa19aa8c88c414e8f5f8197edf716dc60a0305c74b8c26daebeb0681eca527d2049

Download Submit
memory/2336-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2336-8-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4856-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4856-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download