5264dd9ba98045b738eba0bb4d229dad6d0ba78046fc0ddee581569fdf1b1250

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 14:54

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General

Target

2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
Size

70KB
MD5

633c9f1236f4e0dc09e541b6741d8fca
SHA1

4ec58f1a731581d0e6f89159eda7b8471458d605
SHA256

5264dd9ba98045b738eba0bb4d229dad6d0ba78046fc0ddee581569fdf1b1250
SHA512

2605e4b69d4f3b22412a59ef17efc9aef38f9580051833b5b325d2a233c8cb4c1ec1524a4fd7c51314d568610cd8fdb371e5edfe62e38333cfa6fcfac0eab30a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEZ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2788	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.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	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2240	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
2788	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2788	2240	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	30
PID 2240 wrote to memory of 2788	2240	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	30
PID 2240 wrote to memory of 2788	2240	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	30
PID 2240 wrote to memory of 2788	2240	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

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

Filesize
70KB

MD5
4b533d501c21e65c8d0113f3dd68706a

SHA1
e4a4f08cf6fd9a09c901594b1a31b7639df85ea0

SHA256
d2dc983759ccedea2b1e82cbb14633bec8576446328e9c545c2a3f54c1af29a0

SHA512
8ebd326e85a502466e2406bdcc517b5713a18422154ff3ba1745eb19918a812a1d83cd19bdf11a9a4897db0b535face9d8738f52bd3fe0d99bb8377b47d3b701

Download Submit
memory/2240-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2240-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2240-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download