c92de2f91039c83fc5108bdec3894e21463d9313bab5a25506c5014dec369ebe

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 04:26

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General

Target

2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe
Size

67KB
MD5

0d30335f8dc869f5308abf7915a2a224
SHA1

218366e48b5f9a5a484d753cac1447c041867f89
SHA256

c92de2f91039c83fc5108bdec3894e21463d9313bab5a25506c5014dec369ebe
SHA512

c21af0bc225ff852b5044619a073d888f4dc1a6da5a1c09cdf6c107072a04a908136bdeb54b7077d257eed590f3b4e443611cbaec91a6c67d83736f13a2b3e56
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/X:i5nkFGMOtEvwDpjNbwQEI8UZDv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/4756-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000c000000023b58-13.dat	CryptoLocker_rule2
behavioral2/memory/2124-19-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4756-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2124-28-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/4756-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2124-28-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/4756-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000c000000023b58-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2124-19-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4756-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2124-28-0x0000000000500000-0x000000000050F000-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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2124	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 4756 wrote to memory of 2124	4756	2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe	83
PID 4756 wrote to memory of 2124	4756	2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe	83
PID 4756 wrote to memory of 2124	4756	2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_0d30335f8dc869f5308abf7915a2a224_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2124

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
67KB

MD5
17bd0cbd5dcff90ad70698e997b1e503

SHA1
8021605a4869e63c0fc8a61ce6b25105805dd757

SHA256
51b037699795729b94dbd936caba57f1faf646b60885552a5fd057e6d46b39db

SHA512
add020246219a934bbea65c2a2b222e5a6258939e8671a9d2715488467a84c7caab41ca0135f5ac881f4186c601b90a47f454ca79a9cb8514ea869047c725638

Download Submit
memory/2124-19-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2124-23-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2124-27-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2124-28-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4756-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4756-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4756-2-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/4756-9-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4756-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download