5b23743933e04a66e7b9b42e8255ceda801a4e6fc12d26862bd43b89562165dd

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 01:23

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General

Target

2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe
Size

35KB
MD5

d4b25d3ee24364dffbcf20a4f1d0f8db
SHA1

a54acd7a19ed423ce078a836ada0095662c22ef0
SHA256

5b23743933e04a66e7b9b42e8255ceda801a4e6fc12d26862bd43b89562165dd
SHA512

ce7a464eccc9162e2ac1cd02501a5097cca24a8e49584f6914173a2b2d7a2b26efc6d464306e39f499de5c4572ddc0bf6df619cc16cff7795327d50c083fb139
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmU3:bxNrC7kYo1Fxf2rYPL3

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3700	pissa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pissa.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 3700	1776	2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe	85
PID 1776 wrote to memory of 3700	1776	2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe	85
PID 1776 wrote to memory of 3700	1776	2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_d4b25d3ee24364dffbcf20a4f1d0f8db_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3700

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
36KB

MD5
2867fcbec7882593686ea1a834bc7c62

SHA1
57cdd605399bedadee1218cf75b7610f33661531

SHA256
d10d46065f82a963865e4c46d5b8ce3a92259f2cae817057ff6ceb558569ab4d

SHA512
6e38b177e9f06e99923b5686d15c46d8f157794fd527b27c8b7c0e93e5e9a7ac16bed8020b5cc754d8d50c49c0e160a56d8fc8e908b893f9c329f321ed628662

Download Submit
memory/1776-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1776-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1776-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3700-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3700-23-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download