90e5cfd34f394edba45a832c8bc85cad7ca9a8fbef151fb67c9354952b70e42b

Analysis

max time kernel
149s
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
30/09/2024, 20:22

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General

Target

2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe
Size

55KB
MD5

7706caa019672f06cc00a773ee2c9005
SHA1

687a9157b298b9d89b88964deec27ee856e5088f
SHA256

90e5cfd34f394edba45a832c8bc85cad7ca9a8fbef151fb67c9354952b70e42b
SHA512

25c14da8a40c04d2a8369ab70611e03ed3121a5b595a3d2eb98cdd925d130837d79ec6d92b5a16d7284e02e25e450848a007a63891a7c63e6338a826ddaff04b
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62tH/1/Lp17zJIfeVEuUr68:bc/y2lm6iH/NLp17zrV9m

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	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	2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 2888	4712	2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe	83
PID 4712 wrote to memory of 2888	4712	2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe	83
PID 4712 wrote to memory of 2888	4712	2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_7706caa019672f06cc00a773ee2c9005_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- 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:2888

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\rewok.exe

Filesize
55KB

MD5
3f227bb4a5324f801b58768383883cfb

SHA1
bc130e6e3ab4e71d0e7e302070aaf2b9be496c18

SHA256
5bb86dbc4a5451c34343349fb08130ee2d8d1bbf8f00b542928ae965c25405d3

SHA512
df26d1f807e99ce4e1c41ffc6fdf38fb43bc81dca194b51c03be734db789bc822b648f4c7ef272d0b3d3f1354f376d0ab7fc0ae5e95840b194d44f0f3af26c3d

Download Submit
memory/2888-25-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4712-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4712-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4712-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download