b45a63a48ba47e1be7b05c349708be30dcdb22d935eaea99f03b67a1a3eef837

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23/05/2024, 17:27

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General

Target

2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe
Size

77KB
MD5

2e19c113e0a5f336ce009ac10e5c02f9
SHA1

55e9ec8c4744b30fd12116869d7800a4e363038e
SHA256

b45a63a48ba47e1be7b05c349708be30dcdb22d935eaea99f03b67a1a3eef837
SHA512

f322a76771cd9490d38753f7579fe6f0e8876ebd0048b29d8f3f71655a75dff1a0d766465826b7eb676dd5bcaeacf2dbe6191e786ea75966bab9cc84bc78809a
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KU0:ZVxkGOtEvwDpjcaA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022f42-13.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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1684	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 1412 wrote to memory of 1684	1412	2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe	82
PID 1412 wrote to memory of 1684	1412	2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe	82
PID 1412 wrote to memory of 1684	1412	2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_2e19c113e0a5f336ce009ac10e5c02f9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1684

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
8fa83631fc2ff4704adebf63c5b2ec0f

SHA1
861dd2cc4d0aef9d41581f37c5a36b9e95dbbf7d

SHA256
9d4f5832a346a17a8ff0d37973c65f90f287dcd9bbc8ac7b28b449791102cd2c

SHA512
64527d53d4e54cf6c0f0a402c194af7d87d507f0daa4f4e72ade2418db4330192c2e3d4f477c209c1e99a4f014d61c2d2c5c81a8ebd53f77741c901a8b1a3065

Download Submit
memory/1412-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1412-1-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/1412-9-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/1412-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1412-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1684-19-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/1684-25-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download