9bfb508e22b5da0bf7c6663eecc33ee3821186d7d099af486afb148ec7c8f78d

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 06:27

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General

Target

2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe
Size

49KB
MD5

bdfd5a3618383d6abf7368f9c068ab0c
SHA1

0b5c37ce90ac5e8777ca8f597a6272ef3afe2d67
SHA256

9bfb508e22b5da0bf7c6663eecc33ee3821186d7d099af486afb148ec7c8f78d
SHA512

958d208be6b5ee1d714bd312d49c13325eb429ddbf5a5bd55bc19db13f42ed5eb6e1a8f066d3445959aa836fca024866717e03c7fe895b4ba86b3e6305180442
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatr7:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7b

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

2200 hurok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe

pid process

2088 2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2200	hurok.exe

pid	process
2088	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_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

Processes:

2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exehurok.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exehurok.exe

pid process

2088 2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe
2200 hurok.exe

pid	process
2088	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe
2200	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe

description	pid	process	target process
PID 2088 wrote to memory of 2200	2088	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe	hurok.exe
PID 2088 wrote to memory of 2200	2088	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe	hurok.exe
PID 2088 wrote to memory of 2200	2088	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe	hurok.exe
PID 2088 wrote to memory of 2200	2088	2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_bdfd5a3618383d6abf7368f9c068ab0c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2088

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:2200

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

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Downloads

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

Filesize
49KB

MD5
8d2c0bfe336a8cc68b69db550672caea

SHA1
44f6caf4a81989ff032adf0ad75141b3e3b39b66

SHA256
debd31cd98a90fcef07b62a86e0e1db30fb6b8b88e9ff1639c689751d9027e9f

SHA512
d29db8809527eb7d08c4c24a5d052cd5fc3445672250df5f42c54b61f2c745f838944c888f226514327688d6665845078a6c8da0dca96edd0831013bf21a6f41

Download Submit
memory/2088-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2088-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2088-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2200-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download