a394a21b1bc5a1a69f9686a9537cad8acfccd0ee5070173d49886ce5e83c62c7

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 00:26

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General

Target

2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe
Size

34KB
MD5

0309634170a18dbd0d777edfd6590e0a
SHA1

770077ee449d032c35dc41cee9ca28b4e39bf5dd
SHA256

a394a21b1bc5a1a69f9686a9537cad8acfccd0ee5070173d49886ce5e83c62c7
SHA512

cdf87b708522acd5de7422bec18308abdf24903173ecff203bfc15c261ac82cec9cb41a6d2eb99f1596f80eb5f2aa4041c1786a517058713f93c5e4e650e5042
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5Pp74:bxNrC7kYo1Fxf2rY1s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002328f-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
232	pissa.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 1856 wrote to memory of 232	1856	2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe	81
PID 1856 wrote to memory of 232	1856	2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe	81
PID 1856 wrote to memory of 232	1856	2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_0309634170a18dbd0d777edfd6590e0a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:232

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\pissa.exe

Filesize
34KB

MD5
0fed396a09c8381e96c1b511789da760

SHA1
d0e9e6b914d2ad92d9e1b79fd72944bb243b6f5b

SHA256
411f78490ae3047c0c4ba74066652c3049e603f95c3ab0b4f63919942c187730

SHA512
ba640ec43f7c5b80bb8d7ad39532f050adebdd1bd1e84e1cbdb6699107472b86a4dddab933d9ead60197259871e2137c2c906bc7a1da0fbac7265cc95ae8bbc5

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/232-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/232-17-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1856-0-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1856-8-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1856-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download