1993c53bfecc16db8e8a1609a9612573bed7a396dbe223894f68a403c6772bdc

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 18:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe
Size

55KB
MD5

2df329feacc268e1244a2c51f8cda134
SHA1

5f49389f78e4aed588c6e58d6194146b9c3d8ad7
SHA256

1993c53bfecc16db8e8a1609a9612573bed7a396dbe223894f68a403c6772bdc
SHA512

02d200b17222dba73fa5bf64f6a6a158a904f20ae30fe1c64463d5ebeedb42e9ac0005715b08ab9ee0ed065574c32255a01f6de396fdf698a217f64a31ec8e95
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7WwfeW:6j+1NMOtEvwDpjr8oxEqW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/4072-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00070000000231e2-13.dat	CryptoLocker_rule2
behavioral2/memory/4072-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3660-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3660-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/4072-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00070000000231e2-13.dat	CryptoLocker_set1
behavioral2/memory/4072-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3660-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3660-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/4072-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00070000000231e2-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4072-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3660-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3660-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3660	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 4072 wrote to memory of 3660	4072	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	84
PID 4072 wrote to memory of 3660	4072	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	84
PID 4072 wrote to memory of 3660	4072	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3660

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
55KB

MD5
9da81489b3fd465c2389a4113b91b719

SHA1
e1e3f1482540c84bbfb9d5470348603b591f0db2

SHA256
fefa9e35d4b65648ad3fd3f0ed98f0aca9e8c51dbc0f0ecbd117493ff341e22a

SHA512
b89ac8d1ebcf6c34a57233617f56d2f23b44e278a6e01dea7223e65d4d5a4fcd2dfc8eaeee213a2b2b3860469c0add25b9cc5f6f0592247068e42687d2273215

Download Submit
memory/3660-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3660-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4072-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4072-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4072-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4072-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4072-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download