483ccb7581b25f10774ea71f89cc32c788adcaf21a332cf8ef3b6788467f42e3

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
29/01/2024, 04:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe
Size

70KB
MD5

2c3daeee9d2bfaf1dea1fc21d44f0eb1
SHA1

01db695de3a5733de3866dec26dda031235c91c4
SHA256

483ccb7581b25f10774ea71f89cc32c788adcaf21a332cf8ef3b6788467f42e3
SHA512

6299e990646f37b3c28d9e07442092598d1558fbd592752a74619dc9c77dc12ef5a7bb518a55d72c02b18fb9b17ec596de54c63a62af6f8b436a6fae5d12bd6f
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUtbgz:DW60sllyWOtEvwDpjwF85C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/3284-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00080000000231f7-13.dat	CryptoLocker_rule2
behavioral2/memory/3284-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/3284-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00080000000231f7-13.dat	CryptoLocker_set1
behavioral2/memory/3284-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4072	asih.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 3284 wrote to memory of 4072	3284	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	85
PID 3284 wrote to memory of 4072	3284	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	85
PID 3284 wrote to memory of 4072	3284	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3284
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4072

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\asih.exe

Filesize
70KB

MD5
e3d14f25955ec96e4d7b3df0f1eaf3c5

SHA1
3d5646a424ef51366b660d00951aaafb28f40a85

SHA256
eae25e2274e77d8d94882562ddac85c321aa0bcd2baff3f18219ceebc91ee27b

SHA512
be6b48ad40388dce22058aa0030befa6d162dd97060eef0d5447f39fae497704d70eb4adf23f2f7afafde5805336777b2562be2ea137aa8919295429cb82d9cc

Download Submit
memory/3284-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3284-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3284-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3284-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/3284-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4072-19-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4072-25-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download