e5c6ab36ad40c8d469c2e8a2b789742c0f628c132356bdbad37761f8131b5e25

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 00:30

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General

Target

2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe
Size

72KB
MD5

86096055f173830ee85352bc9caf4b96
SHA1

647744389962512dd471d64c0dc49bf481af7ecb
SHA256

e5c6ab36ad40c8d469c2e8a2b789742c0f628c132356bdbad37761f8131b5e25
SHA512

e739d49a3881956dec7b54a77db891ebfca6d4ea01aa29f9849bd262cae4ae2c200bdea2e673dcf5724389ab4e233e898ad4c280c8a951bdbfbd2c94de50ccc2
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Ma:X6a+SOtEvwDpjBZYvQd23

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023175-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023175-12.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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3828	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 396 wrote to memory of 3828	396	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	87
PID 396 wrote to memory of 3828	396	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	87
PID 396 wrote to memory of 3828	396	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:396
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3828

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
72KB

MD5
76072aeba96d523ee4e6e4f598e5074f

SHA1
9d4f32adc2bfcf2d9418b85bb594b2e5b6b6058d

SHA256
1b2746b08deba9aa20f66d007477a65c725628a72fe830b25e535fe4abf8dda3

SHA512
89f8d92f0addc0ca8d33729a4d6c7988858ba54386bf8511f9fbbc958c64156482d3ddd72ec8e9979f98032cead2638c2b29d6be14eb6d66eaf1f52ce690c1ce

Download Submit
memory/396-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/396-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/396-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3828-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3828-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download