dc91c130b928995a80f3668bfa1155b134d783598adef85deb485ae4e8543182

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 20:27

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General

Target

2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe
Size

77KB
MD5

2d96a189f951f303e61f7a04f91e0b5b
SHA1

f4797e8a077bac03f228d0e083bb75b44b846900
SHA256

dc91c130b928995a80f3668bfa1155b134d783598adef85deb485ae4e8543182
SHA512

941cdde047d8663d1ee55d76c71e93bdc063052b6dc4b901a8f9a089d4849c03f6ce07873a6548424c3e4bb5f88f0249c9ca41300061b0cc2bbdcde00c9a319f
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTgI:ZVxkGOtEvwDpjcax0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002322e-13.dat	CryptoLocker_rule2

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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3808	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 228 wrote to memory of 3808	228	2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe	89
PID 228 wrote to memory of 3808	228	2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe	89
PID 228 wrote to memory of 3808	228	2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:228
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3808

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
77KB

MD5
23395618945b63a854f60378fb94d702

SHA1
f13d3bcdb8d59b93f737abd680d71751ddca1af3

SHA256
c74cbf461179cb98b3e7ddd87e0b06a343a02125f893dceec203a759e7a9f67e

SHA512
ce6cad5ff66ec99c35dbd23a7d3c3a04bf010a9391b04e9b5d5ebf1b35d99cc6693cbd12593a60fd43323429a7e3a64b37e6909158253f42ee7e3f24fea14d28

Download Submit
memory/228-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/228-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/228-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/228-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/228-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3808-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3808-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3808-22-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download