7b6966d7eb22725dbb68723a335d931c6a36187ccd479ab550b2278471b8f70d

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
30/06/2024, 02:03

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General

Target

2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe
Size

78KB
MD5

941b5967881673d75b4a783e913e8e8d
SHA1

e4d374b7705939c9ddf2066c984405dab5dab8c5
SHA256

7b6966d7eb22725dbb68723a335d931c6a36187ccd479ab550b2278471b8f70d
SHA512

20fe9fb64fba1c77193a87f2c6dd320ce7cf11ee7a737126734ddcf542818d1069f80d1a6106737d0cf504768fcded150935ca790d34768afabcce95ec68acb2
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktD:X6a+SOtEvwDpjBZYvQd2C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023555-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023555-12.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-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1864	asih.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 2680 wrote to memory of 1864	2680	2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe	82
PID 2680 wrote to memory of 1864	2680	2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe	82
PID 2680 wrote to memory of 1864	2680	2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-30_941b5967881673d75b4a783e913e8e8d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1864

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\asih.exe

Filesize
78KB

MD5
c56e198d4cd212524d1a9f0694041ea1

SHA1
e596ef7cb97af560f6d523063dc870c189fa6ad7

SHA256
f81471e58ef67eb1d1673c233ccb8b42772a24e4ad87c9bd95af6175f4f84a4c

SHA512
013b6d377ae3417b29fdd92d9c3614a1af5d62d332aef816a55e6bfc89985f8264a5541d520476381167ff2710ca179dfda621a2f9c31be08f6a224e5e165a27

Download Submit
memory/1864-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1864-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2680-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2680-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2680-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download