1a18a891e8d7d2b5e6f51c4eba25a3ab78a4e688f85aecfeb84392b3c589da16

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 19:28

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General

Target

2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe
Size

52KB
MD5

21776d01863746356ed49886706dbe24
SHA1

68c183c06b4255ad7a1d03d2c32a752f5da0d5f4
SHA256

1a18a891e8d7d2b5e6f51c4eba25a3ab78a4e688f85aecfeb84392b3c589da16
SHA512

e940a1cfe4e14aa7383e47ea0a4496faeb0a7ffb0874a17bbeefe73941cf5ed2af52876012e6bf0c27bcb79cf7e369a8132a85dfad86ab610b6cd69bda532c3b
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5Sk:ZVxkGOtEvwDpjcr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-13.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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation	2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3612	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 4380 wrote to memory of 3612	4380	2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe	91
PID 4380 wrote to memory of 3612	4380	2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe	91
PID 4380 wrote to memory of 3612	4380	2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3612

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
52KB

MD5
997b9211eb6a6ddaa9458bc49a3bfe1f

SHA1
d22ecf3edc976a7b3a477164314e5503e8215e95

SHA256
87530047ffad3b2f53373f337026710d2200e82b60fc652d876970dbe304bc2f

SHA512
7f3312f9c2685c7cc8d030340bca2a78a8c4cbb057aa320ab9f8f91bf11bc5090d419e11ab0a6740c95ee11254f09aa53c44b29e44b754651459030e7bec9d38

Download Submit
memory/3612-19-0x0000000000440000-0x0000000000480000-memory.dmp

Filesize
256KB

Download
memory/3612-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3612-22-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3612-27-0x0000000000440000-0x0000000000480000-memory.dmp

Filesize
256KB

Download
memory/4380-0-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download
memory/4380-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4380-2-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4380-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/4380-17-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download