43569b9d1ac5d24de5830ef4b99527b88b6feadd61ca88d30e8c1dd4bc041943

Analysis

max time kernel
149s
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
28/03/2024, 00:44

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General

Target

2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe
Size

42KB
MD5

2f79468941f17aa8700527d459a9b7ff
SHA1

468c3a7b68ab0583e8b81278a4655cb7676e6195
SHA256

43569b9d1ac5d24de5830ef4b99527b88b6feadd61ca88d30e8c1dd4bc041943
SHA512

294de921a17dd557fe89cd712c749a6608d20b2518cc7b8048324c7317d0ba8403073842ddba935dda151cbb382a5d9a6b1f94b1ccea95aaadb142b7092a39a9
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkp9vYf:vj+jsMQMOtEvwDpj5HW5Ii9vYf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023208-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023208-12.dat	CryptoLocker_set1

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	2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4556	misid.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 2496 wrote to memory of 4556	2496	2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe	87
PID 2496 wrote to memory of 4556	2496	2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe	87
PID 2496 wrote to memory of 4556	2496	2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_2f79468941f17aa8700527d459a9b7ff_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4556

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\misid.exe

Filesize
42KB

MD5
b950b19181fa108e25fa1016587d1da8

SHA1
603577d51a2f387b8e27621f93f4fcc0ecc3de9d

SHA256
094e4d7f89baa4038eb27642d960c311899429ed05f7ee58ae26a521b9505400

SHA512
24f73b1f20af094eb688879c493dd05fa3d4918b9361b70a1b1cb8f787e0122c06288d102d1d6fe7524963ed5002468b4925ba5dd67e291d26dd9d3fb610883d

Download Submit
memory/2496-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2496-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2496-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4556-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4556-22-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download