32b8e7191894d738bbb3e8e833ff0f2f4220b303f1fbb59ff23912b05337d618

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15-04-2024 20:44

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General

Target

2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe
Size

41KB
MD5

6d8129968a62e5934597561ee18f941c
SHA1

8a3f5e2adcf0967055a2064a8c5e730f38a9b384
SHA256

32b8e7191894d738bbb3e8e833ff0f2f4220b303f1fbb59ff23912b05337d618
SHA512

655882ae663854636edcd88e041ad851106e76d0f8ae0ecbe7b4f9be6095ff0476d8dfe7e3ba3dc1aa2a2b78fd5a714107f4db984e9b6871e231d66f9ac4ecd8
SSDEEP

384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOK:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/M

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/4848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000800000001db0e-13.dat	CryptoLocker_rule2
behavioral2/memory/4848-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/4848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000800000001db0e-13.dat	CryptoLocker_set1
behavioral2/memory/4848-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/4848-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000800000001db0e-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4848-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4788-27-0x0000000000500000-0x000000000050F000-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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4788	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 4848 wrote to memory of 4788	4848	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	83
PID 4848 wrote to memory of 4788	4848	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	83
PID 4848 wrote to memory of 4788	4848	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4788

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
41KB

MD5
b5a97cdc8884b7993524954db3cec560

SHA1
9eda0a49d045a65256a5a9345b6d766fb83cdc98

SHA256
96b1aa96f883e72418a0fe23b5524553b84cf390851859225c8651a047f49507

SHA512
3f163b21faf0d56c0fda7b72c215236b0e6a8f2b236e4d0fb28fd8c8767e443bf6f7dfa6855c77053076b3df15ef1647c4c6665b99f1667832af3ca766a684a8

Download Submit
memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4788-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4788-22-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4848-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4848-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4848-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4848-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4848-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download