3f36703c245b64be974b8f503e2950d574bea2331a3d622706bb1b094b9c4e2e

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 21:41

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General

Target

2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe
Size

39KB
MD5

cebf292c46887880283716bb8b0d46e1
SHA1

5951ab6c8b661b05f8be3ef173a4534745794e34
SHA256

3f36703c245b64be974b8f503e2950d574bea2331a3d622706bb1b094b9c4e2e
SHA512

e25c9c854476a80a21a8a05450566421f99ffe463689b3feaf59f65cb9db25c350c68aa6b6027f04d1af0659ccce90903a14bc5012a99cc9867721197e657cb0
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3OxGD:bxNrC7kYo1Fxf3s06gYQD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4776	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 3016 wrote to memory of 4776	3016	2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe	89
PID 3016 wrote to memory of 4776	3016	2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe	89
PID 3016 wrote to memory of 4776	3016	2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_cebf292c46887880283716bb8b0d46e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4776

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
39KB

MD5
d306f4639210f54c4cd61955de0be05e

SHA1
d443ef94e6e4eef1be1d38201df6354a9475e5e4

SHA256
b36f6ecbcfa02b8f4aa3a4fe9871514bcefce791cb37e7b4db8f4ea859b53ebb

SHA512
98d8c4603975265fd2f5fa301661dbb1bcbfbdc18394ef4d53b7b3b48dca196b49c2bcf2c8d14aa58bf253c0e00e9794f535ac08948b8d6135755fdab08e3d83

Download Submit
memory/3016-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3016-2-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/4776-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4776-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download