2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459

Analysis

max time kernel
289s
max time network
302s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
29-08-2024 22:34

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General

Target

2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe
Size

416KB
MD5

f5d7b79ee6b6da6b50e536030bcc3b59
SHA1

751b555a8eede96d55395290f60adc43b28ba5e2
SHA256

2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459
SHA512

532b17cd2a6ac5172b1ddba1e63edd51ab53a4527204415241e3a78e8ffeb9728071bde5ae1eefabefd2627f00963f8a5458668cd7b8df041c8683252ff56b46
SSDEEP

12288:ISqMakU3v+GYLWIjD9dSbvBG5u2uQjdQco:jq53v+G4Wwub8Ljaco

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 6 IoCs

Processes:

Hkbsse.exeHkbsse.exeHkbsse.exeHkbsse.exeHkbsse.exeHkbsse.exe

pid process

4804 Hkbsse.exe
4800 Hkbsse.exe
808 Hkbsse.exe
4444 Hkbsse.exe
1004 Hkbsse.exe
1920 Hkbsse.exe
Drops file in Windows directory 1 IoCs

Processes:

2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe

description ioc process

File created C:\Windows\Tasks\Hkbsse.job 2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4804	Hkbsse.exe
4800	Hkbsse.exe
808	Hkbsse.exe
4444	Hkbsse.exe
1004	Hkbsse.exe
1920	Hkbsse.exe

description	ioc	process
File created	C:\Windows\Tasks\Hkbsse.job	2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.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:

2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exeHkbsse.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Hkbsse.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe

description	pid	process	target process
PID 1888 wrote to memory of 4804	1888	2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe	Hkbsse.exe
PID 1888 wrote to memory of 4804	1888	2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe	Hkbsse.exe
PID 1888 wrote to memory of 4804	1888	2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe	Hkbsse.exe

C:\Users\Admin\AppData\Local\Temp\2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe
"C:\Users\Admin\AppData\Local\Temp\2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
  "C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4804

C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
1⤵
- Executes dropped EXE
PID:4800

C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
1⤵
- Executes dropped EXE
PID:808

C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
1⤵
- Executes dropped EXE
PID:4444

C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
1⤵
- Executes dropped EXE
PID:1004

C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe
1⤵
- Executes dropped EXE
PID:1920

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

C:\Users\Admin\AppData\Local\Temp\054fdc5f70\Hkbsse.exe

Filesize
416KB

MD5
f5d7b79ee6b6da6b50e536030bcc3b59

SHA1
751b555a8eede96d55395290f60adc43b28ba5e2

SHA256
2f1aff28961ba0ce85ea0e35b8936bc387f84f459a4a1d63d964ce79e34b8459

SHA512
532b17cd2a6ac5172b1ddba1e63edd51ab53a4527204415241e3a78e8ffeb9728071bde5ae1eefabefd2627f00963f8a5458668cd7b8df041c8683252ff56b46

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