e5a06c46fe5509117649302ddd492b2658476a6f7b5ea313d4738912e3fb00e9

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
21/04/2024, 03:51

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General

Target

2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe
Size

81KB
MD5

50734f47c0660608fabf01ec6aa6466f
SHA1

3d003d71ef72cba1189351a8a7654e68df505cdc
SHA256

e5a06c46fe5509117649302ddd492b2658476a6f7b5ea313d4738912e3fb00e9
SHA512

957608a8463c37197a99a33b447c57f41db2a6036e098bd88a0804d4d98c590fec7578cfdd62c8f13f4d28bcc74effdecf8022f72b99845eb933086aaa5669d8
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNqVm:vCjsIOtEvwDpj5H9YvQd2B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2244	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 2648 wrote to memory of 2244	2648	2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe	87
PID 2648 wrote to memory of 2244	2648	2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe	87
PID 2648 wrote to memory of 2244	2648	2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_50734f47c0660608fabf01ec6aa6466f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2244

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
81KB

MD5
c034c01280d5539f2f85bb5deb7e9872

SHA1
451eb7b1312cf32e6f713c7da35ba15b3c6f3cf5

SHA256
daddc972b9d4b9191b3656255eda1db558c90a66fab9c00ba3e9722bc211df88

SHA512
d64e3329d3dfb1c62eb9a2e85ebc5ca282c457043e7a5d4b1ce11c3e247f8ada384a22dffd7094c1e0e0d2780ac40dd5653deaca45e67eafc33001465b89f02e

Download Submit
memory/2244-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/2244-19-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/2648-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2648-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2648-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download