cf3400cfe838895dddb9d6de862ec3fe992dc6f881724b8c669b10eca24fe7dd

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 20:24

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General

Target

2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe
Size

72KB
MD5

5782824b591752d38e18a18b4376dc08
SHA1

46bd7a6c1f5afbd99f6b6cdc834e73f2778ca3a8
SHA256

cf3400cfe838895dddb9d6de862ec3fe992dc6f881724b8c669b10eca24fe7dd
SHA512

4b73193bc739f6cac1bf7667bae9edd831d3ce6ec03c90909fad1935d088985622b10cf03133d5bd8510ae61a25901b93893c98626d9b675c2b1c032708b2580
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Ru:X6a+SOtEvwDpjBZYvQd2E

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002317f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002317f-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	2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2200	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 4540 wrote to memory of 2200	4540	2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe	86
PID 4540 wrote to memory of 2200	4540	2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe	86
PID 4540 wrote to memory of 2200	4540	2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_5782824b591752d38e18a18b4376dc08_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2200

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
73KB

MD5
e3ccbb8ee85e45b31ccbbdd25ef4e065

SHA1
209595cd04b89c078a6d1621b8d579b7a644ecd6

SHA256
cf70a6ad53022db09b66c43932c694db41942e781a5bd89cbe517c82b29eee5d

SHA512
9f166775ff922fb1f02f1b9bbde4c2764aba04a131d2ad3ea134de305fb8683a3aee10bc61753813be174517ac2c8d072d91455728ac25804cbad6b3dacf5f49

Download Submit
memory/2200-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/2200-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4540-0-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4540-1-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4540-2-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download