f91fdae1b4577934332b02f012101b9f959c33bc4577665fc3e53807a762c017

Analysis

max time kernel
148s
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
18/10/2024, 01:51

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General

Target

2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe
Size

27KB
MD5

930f321422d899296c1fc7c095a44a9c
SHA1

7529682886b9728fc41dba2058f3cf2f69142920
SHA256

f91fdae1b4577934332b02f012101b9f959c33bc4577665fc3e53807a762c017
SHA512

7216cb2cf16dec26ed7844c33ba038ce41185714b44a6cfe1e4f9df2e20823de5c48fea453f3dccd04a8b6938b3b916713e921540c6a87ef464730286bfdff3b
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCA:b7o/2n1TCraU6GD1a4XA

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	rewok.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	rewok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3800 wrote to memory of 2616	3800	2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe	85
PID 3800 wrote to memory of 2616	3800	2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe	85
PID 3800 wrote to memory of 2616	3800	2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3800
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2616

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\rewok.exe

Filesize
28KB

MD5
c935c59e9005ec7e2513d162bcfa598a

SHA1
e709033e11f8c26331fd097eb5929ffe04fdbba2

SHA256
01ed31eec81a1448289f20dea4e11f4c07ec40e4dcfd32e64c96ff764e88d6fe

SHA512
017da2d2143b0d9a945bff43cd8c5c12bbbc4bd5ae725392f739a55bd52d1d79fdbb9351cdb5f27e0f2598a0c63a27f12f8e68f143d1b5b9c500d30d7ec48b78

Download Submit
memory/2616-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3800-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3800-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3800-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download