5e8077c470f27970eb54b2720e0fd1f0d49dc7beb3d93c4e6833774e5f209375

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 03:58

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General

Target

2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe
Size

60KB
MD5

9fc938fd1c7e7bea6280780069ec5840
SHA1

660d447f2bde93ad2c3ffb45657a9fbb6ca34507
SHA256

5e8077c470f27970eb54b2720e0fd1f0d49dc7beb3d93c4e6833774e5f209375
SHA512

97e0f74a1da43a977a0428b57a5bc440436f98d4037489e825cd309c8bab624f00fb55462b9af0a36cf572db8117e47ca9780970707f73d54fcb89ee26b9e202
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9Q:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/4992-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00070000000233fd-13.dat	CryptoLocker_rule2
behavioral2/memory/2344-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4992-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2344-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/4992-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00070000000233fd-13.dat	CryptoLocker_set1
behavioral2/memory/2344-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4992-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2344-27-0x0000000000500000-0x000000000050B000-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-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2344	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 4992 wrote to memory of 2344	4992	2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe	86
PID 4992 wrote to memory of 2344	4992	2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe	86
PID 4992 wrote to memory of 2344	4992	2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2344

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

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Downloads

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

Filesize
60KB

MD5
4b2bccdd16b47b94ee55df1578b7caeb

SHA1
d816f5434b87fb16c84f383ea67b80539d0eb5b8

SHA256
cc5a2905cf7b80dda3bdc375eef65b6aac6f4804610d927569041ef7cc2cc12a

SHA512
1da7c693cbc04f0bbd0033b75fd8ad872733ef8313ef7d6a0050f47dbc907b7dc26d3e08d5cb5a5db1bfdd4da1ada4fcb2d354ac59677dd754a3d3bccce3799f

Download Submit
memory/2344-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2344-21-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/2344-20-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2344-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4992-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4992-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4992-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4992-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/4992-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download