7a84cbb02471bbfc493d01ccccdc01eb61cb0a25d975da33f94ade68bcd5a782

Analysis

max time kernel
88s
max time network
151s
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, 01:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-01-29_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe
Size

44KB
MD5

b514d3f985afe1586f2c57f3cb1b9a82
SHA1

5f2052e01a7b4651706529b787742cac22d59eda
SHA256

7a84cbb02471bbfc493d01ccccdc01eb61cb0a25d975da33f94ade68bcd5a782
SHA512

f7fb3366e667ddd3f64dfba8e1d2179786933c1d425763a48da2bcc641b506925bda47d0cebc6cb46bee6acab134795f4f0f15ba89afe075ae786f6f0541156d
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhbCi44vCxh:6j+1NMOtEvwDpjr8dx49

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4284-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023215-13.dat	CryptoLocker_rule2
behavioral2/memory/4284-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/800-54-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4284-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0007000000023215-13.dat	CryptoLocker_set1
behavioral2/memory/4284-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/800-54-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/4284-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0007000000023215-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4284-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/800-54-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Checks computer location settings 2 TTPs 2 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_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
800	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 4284 wrote to memory of 800	4284	2024-01-29_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe	86
PID 4284 wrote to memory of 800	4284	2024-01-29_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe	86
PID 4284 wrote to memory of 800	4284	2024-01-29_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-29_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_b514d3f985afe1586f2c57f3cb1b9a82_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:800

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
44KB

MD5
e2d710f68676b746d612e385fdb368b5

SHA1
c21d2438ffc5744b0fa907122e1681955e8d77dc

SHA256
e204c836aa1449f3a9f19b6c42d25ee2cfcdfd02886ebdbbe6ed155df577fbf9

SHA512
5b6640ffa10035284bf68c038c5a8a56f1776b0de6f1d746670e4a1735acd6460dfd000df2fcde91288cdd254a082b1321cf308b2ea6bc8191e0e56ee0e19599

Download Submit
memory/800-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/800-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/800-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4284-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4284-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4284-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4284-3-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4284-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download