2e3bd5096ba055cb4e79e9ca60497c65e5253e045bb8c2ac7142fd26af8f1b8e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-10-2024 05:35

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General

Target

2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe
Size

46KB
MD5

5b85d12208be51b81b756abdc4311fa2
SHA1

9b06688954c5a00bc549bf1f65b079271a8fec4a
SHA256

2e3bd5096ba055cb4e79e9ca60497c65e5253e045bb8c2ac7142fd26af8f1b8e
SHA512

35b44f8bb6d9edf4d29b1aa050bb1965a892f85956ee98365a068ab699c049cf931ac59a71b294958f16f81cd8bc2386af582269e7120dd159aa075b7f2a8e8a
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zW:bF/y2lFizbR9XwzW

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2700	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2968	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe

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	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2968	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe
2700	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2700	2968	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe	30
PID 2968 wrote to memory of 2700	2968	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe	30
PID 2968 wrote to memory of 2700	2968	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe	30
PID 2968 wrote to memory of 2700	2968	2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_5b85d12208be51b81b756abdc4311fa2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2968
- 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
  - Suspicious use of UnmapMainImage
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
46KB

MD5
73cc15df927467906472b68e478a623d

SHA1
5d04c2f4e76ad86b06a7197032404d0641c87c81

SHA256
aa2702640889b99bde7876af3cb16449e55bb61cd97bac0c3f2df32a8573d28a

SHA512
ded9e618b46f2047b75d71f6a96cd3dd72c4b375777bf6c8ca849d6b90ff6fd42b1f6caf25be7c0e4c178cd584e03fbabc8f5527b0bc9de635a7d05d3081ec83

Download Submit
memory/2700-16-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2968-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2968-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2968-13-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download