6b725333797174984d4099b2f546ea2936eded25ab6427569c3699c55ab8ffc4

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 08:36

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General

Target

2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe
Size

46KB
MD5

fe4e1491a7a71f05c6ed7cc8901722f2
SHA1

8909f2dc6f85b20732b1d196229003772dacbd8a
SHA256

6b725333797174984d4099b2f546ea2936eded25ab6427569c3699c55ab8ffc4
SHA512

192bfbe579b6de87131cd535e5fc01bfe8815ace729a9c85d67c529ac8c08caa451cce0fbbe3ddd006fd359e19db42b9a830bb4b40684e96b337af1d63758af4
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUujKe7:vj+jsMQMOtEvwDpj5Hczer5ixjKe7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023210-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023210-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3936	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 4480 wrote to memory of 3936	4480	2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe	83
PID 4480 wrote to memory of 3936	4480	2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe	83
PID 4480 wrote to memory of 3936	4480	2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_fe4e1491a7a71f05c6ed7cc8901722f2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3936

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
46KB

MD5
38af9222bfdae9f8e37cf510d828948e

SHA1
1deef51ffa8d774994587671f0ffe2dc7de4976f

SHA256
5b031cde2ea298b833f3b34c3a3357ef7fd6ebceba2914957fd9ec9f7ac0fb6c

SHA512
5c5c8f6c783ad10b8c7a079a886ba9c0732fa07b74c9d3c63a65369181ce5b2ad713b0ad295ff29ad222dc6d231594b5c8c91500323d9ce851b0d6da42194b82

Download Submit
memory/3936-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3936-18-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4480-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4480-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4480-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download