692d8b1d8decc77015a64c60f4166476058da12e7d9aa58dd39b33b565188b17

Analysis

max time kernel
135s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
05/06/2024, 03:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe
Size

34KB
MD5

0494da7a581072c5d49301c513b2f5ad
SHA1

74f22ff25ed8570159c9736a51d061afd2e4aa9a
SHA256

692d8b1d8decc77015a64c60f4166476058da12e7d9aa58dd39b33b565188b17
SHA512

0cf6f34cdd2f9bcec713be9a7e2caa5a1df4e43b00a06cdbf81757cb5fac522cfa8e15eafad5abbd679718499abf54ce9728d7899d26ebdaa0bfd5082a63e277
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jd+aV:bxNrC7kYo1Fxf2rYPsu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000023276-12.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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3608	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 2804 wrote to memory of 3608	2804	2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe	83
PID 2804 wrote to memory of 3608	2804	2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe	83
PID 2804 wrote to memory of 3608	2804	2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2804
- 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:3608

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pissa.exe

Filesize
34KB

MD5
32bb91f1c989e0faa986f3f7853d7c95

SHA1
d7b9d7c23fdb7b9d9f142773b46e2e70a0af1e7f

SHA256
550ec5209051dd17ecb25d7a835cbf4661e4496b7c4563d081016148c447c574

SHA512
87b2acb4b29a7fefce4ae642953d84d68f5c2323d787d545020fa003d33301b0f6521aeaaf372a81823bf483584c37cb30ba56f159b8a6aad4adc2945e9f90d3

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/2804-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2804-1-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2804-8-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/3608-23-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download