8a6ba9a97f4f9f682db76586a0dd4556e87b341a16a37ff13467c9acccbd7a15

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 02:30

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General

Target

2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe
Size

35KB
MD5

d3fe398aebf725246e8d00e96e966577
SHA1

5d3bed0f0f874af2cff119c6c277fa8fe1194119
SHA256

8a6ba9a97f4f9f682db76586a0dd4556e87b341a16a37ff13467c9acccbd7a15
SHA512

9614308831a7352f8fc31279bcf1657e421b650173e1a3f5c3ff4c935d5b04853249172764960855c268d0f116fe1c48a5ccf9172646ccf1b54f176806641156
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6oTy43:bc/y2lLRU6zA6cj

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4372	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	2024-09-19_d3fe398aebf725246e8d00e96e966577_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 4464 wrote to memory of 4372	4464	2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe	84
PID 4464 wrote to memory of 4372	4464	2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe	84
PID 4464 wrote to memory of 4372	4464	2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_d3fe398aebf725246e8d00e96e966577_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4464
- 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:4372

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
36KB

MD5
e5644ccb2435011023e77aba42e2f53a

SHA1
358a2a4eb7004a7fa24d1f9071b70aa9f42f1b78

SHA256
62c42a782a9be1193ce3d1efa687ad2e664a3f2ad42b95b4525c85be260c6e8b

SHA512
e8129d316650458c3f3ab7f8bd1e85de67dea1b6365d4178ea4abe847e8661a138488af35434bffa59c49917d8e2ec4d6b8a442522b5741b0d02de74537586bf

Download Submit
memory/4372-19-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4464-0-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/4464-1-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/4464-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download