3f5cce1b077ee6483f3b93cdb06f27dd0e5326d47394d52588dee300adb02358

Analysis

max time kernel
145s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
22/01/2024, 20:38

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General

Target

2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_cryptolocker.exe
Size

74KB
MD5

7cbc99cad820829e4b5f859d346fd5c2
SHA1

600935c466af24243c117d6031042f8b4f9e509d
SHA256

3f5cce1b077ee6483f3b93cdb06f27dd0e5326d47394d52588dee300adb02358
SHA512

ff70498cf6630f773fd31f78fc0993c159017f01360807c1774b2c1b2fd529600107a297c066c859b3d0dcebd3860fd2bcba4f200619e93f1171aadd4d5b2fe1
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuA5Q:ZVxkGOtEvwDpjcaH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320a-13.dat	CryptoLocker_rule2

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	2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_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
3668	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 4032 wrote to memory of 3668	4032	2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_cryptolocker.exe	87
PID 4032 wrote to memory of 3668	4032	2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_cryptolocker.exe	87
PID 4032 wrote to memory of 3668	4032	2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_7cbc99cad820829e4b5f859d346fd5c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4032
- 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:3668

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
74KB

MD5
fbaa1c057eed964cb07814692cad5abe

SHA1
715ac217d895d8a8e79a6c2acc3234c9c4c3c4b7

SHA256
9a136b54792e4670fb28a0ddd73b5ab3cd8f05bd48a5b7df1856665b201b310b

SHA512
2a50cd3620ef7a1f2046564f802d8565b8998392b2870415dbdacbd39c8cb5b8c935c85259df3a55fa839e58591c97d50ce79bffa480d28268c4be0a48c8d9d3

Download Submit
memory/3668-19-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/3668-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3668-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4032-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4032-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4032-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4032-3-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4032-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download