dc6d0fc99d3da8bead5645cbb535cf289168e15e4abf9c09f58bb1e91912f9e5

Analysis

max time kernel
143s
max time network
154s
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, 01:49

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General

Target

2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe
Size

42KB
MD5

de7fcafd9790761ae9a576c061f5c199
SHA1

f4984d37ed9d3ebe442455527f0396bd56f2c724
SHA256

dc6d0fc99d3da8bead5645cbb535cf289168e15e4abf9c09f58bb1e91912f9e5
SHA512

32888628bf244f234e90e9df01a1c103b24713ef0c21b8f1dbfedcc09064f35812e48c164444aa36c584d14e1d4a62944b4b1bcececdb765e883eee328acc45f
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRq03:bc/y2lkF0+Bja

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320e-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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3516	rewok.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 3292 wrote to memory of 3516	3292	2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe	84
PID 3292 wrote to memory of 3516	3292	2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe	84
PID 3292 wrote to memory of 3516	3292	2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_de7fcafd9790761ae9a576c061f5c199_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:3516

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\rewok.exe

Filesize
42KB

MD5
2352db35f67be8a4de1d78bee769b7a1

SHA1
296b1c157d5822e0fd4705146b3a557469825161

SHA256
81a2250d420d7269241421048b0d08c8521dff6a54358fa4f9f9a84f1ff5ae2d

SHA512
560472ba19f6946f23da25f01ea251ad36644efa09358e7d6c4877021d3c856f93dfc5c981c837dbb75606a9b6676c72fece48d8bf214f023fe98b70be0efb7e

Download Submit
memory/3292-0-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/3292-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/3292-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3516-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download