974f6ac6d318df36e35432a161b69fcd88fb4f4329ec8291f69d141a962b6c7d

Analysis

max time kernel
133s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
15/05/2024, 19:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe
Size

33KB
MD5

e061a766c0465877881cb9f5da94917d
SHA1

23fdb490edfd184b40847d793ebafbfd5ae0e317
SHA256

974f6ac6d318df36e35432a161b69fcd88fb4f4329ec8291f69d141a962b6c7d
SHA512

81b8a2e3e226ef60f707b9eb197ef63d9ea4fa00356cf45b0bce78df516bb48edd2376a35593fbea890ba576076ba7cc4e9f4986db1a884083bd0b0db3fa4dfb
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5u:bxNrC7kYo1Fxf2rY6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233c2-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3136	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 4404 wrote to memory of 3136	4404	2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe	84
PID 4404 wrote to memory of 3136	4404	2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe	84
PID 4404 wrote to memory of 3136	4404	2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_e061a766c0465877881cb9f5da94917d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4404
- 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:3136

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
a415fe095d20b1bdc3dca2b7aea0541e

SHA1
32277b310237416d7bc493e396ae351f68bb18ee

SHA256
e489fa0911e44ad0e8676d4a80e55ee57f5220f42534f4239403869e2c261a79

SHA512
409261c3541f127f2dd38dfc94a2ea3772db45cd97467aecfacbb9b736a05f823cc7511c9c0ca0ce1ad7be30630de62252996d50f7937c6bf62c19d7f41f1c4b

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/3136-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3136-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4404-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4404-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4404-8-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download