733e72726e38784e692da7f2f01a333206d0fcc5b46658918a637f3a09940658

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 15:01

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General

Target

2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe
Size

42KB
MD5

a556c25fea55aa6b2b46c7f9c6314c8f
SHA1

2635e78a34b31d1280389363fd2773dcd999b5db
SHA256

733e72726e38784e692da7f2f01a333206d0fcc5b46658918a637f3a09940658
SHA512

d35cb0d759b2c438f4f81ffc246958ef87ab53790499cb7549120d86b27e451c4a7bc2f3c4c8256d5fd70797b800877ba6613101b25e86751116f2ca3e8a4fc1
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqZMY:bxNrC7kYo1Fxf3s05rwxbFy

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2236	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	2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_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 700 wrote to memory of 2236	700	2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe	83
PID 700 wrote to memory of 2236	700	2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe	83
PID 700 wrote to memory of 2236	700	2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-21_a556c25fea55aa6b2b46c7f9c6314c8f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:700
- 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:2236

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

Replay Monitor

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Downloads

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

Filesize
42KB

MD5
aef0f8f1a3e2d8b8dbf9fe7b6c977cf3

SHA1
0a99713e3c24ef56825884bda5cf78ab61db463e

SHA256
ec0b19172dcf2fc7221aa8a3df2de2a0605ab9c876c30343dda350091a8cec0a

SHA512
e647dcb964bc19c280854fb520992becfa18a4f23ce499b460e2764d6a6f7647ff6b6ad4a80c76d74c66e66f1e611a4fbc1d44007115ea858d85cb73baffc1ae

Download Submit
memory/700-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/700-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/700-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2236-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2236-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download