3b333c8a291c8b64191cd8aa3df8c467ce707654756804c56624d7f39bdaebd9

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2024 16:26

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General

Target

2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe
Size

46KB
MD5

0db739c753699cc8f8ff368e3a00e656
SHA1

747a6036dbc3562972f87ad91a09c1857dac8170
SHA256

3b333c8a291c8b64191cd8aa3df8c467ce707654756804c56624d7f39bdaebd9
SHA512

20fc62ad8d97cdbb90c5ed6de0dbabc102a5a6c6ee0de014eabff683cae2c44d377561d814ca79c5b0593622b03d8e031e2584116da2398fa2766586c41bdb8d
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X3rtLSsYP5:V6QFElP6n+gMQMOtEvwDpjyaHaXvOs6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231eb-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	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 448 wrote to memory of 2696	448	2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe	84
PID 448 wrote to memory of 2696	448	2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe	84
PID 448 wrote to memory of 2696	448	2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_0db739c753699cc8f8ff368e3a00e656_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:448
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2696

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
46KB

MD5
f2c8b162e9e81c45674bee783dbd128c

SHA1
80634ded3b75f12ac0711e45f0c5edd6f7c10080

SHA256
02820026bf181a4ec138e549c547e2620ac0e09a807af53d5f03250d704f1f8d

SHA512
03a1eb97f93ba2cd080a1777e93074c07154910ca0e6e5b7093897ac20c1eedafb2e22858b99872b84bc029a4c0c10102120b5d9acfba56c9163b59f91c2cff3

Download Submit
memory/448-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/448-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/448-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2696-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2696-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download