721582ffe4abce8f7488a3b31c4c948b8ba9f439065437c6c9bd1c950f9446b9

Resubmissions

17/01/2025, 13:15

250117-qhg8vsypcz 4

17/01/2025, 11:29

250117-nlw53swmar 4

09/01/2025, 21:28

250109-1bc1ns1qgt 4

05/01/2025, 19:25

250105-x44gjstlew 10

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/01/2025, 21:28

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General

Target

module/VastPlayer/VastPlayer.dll
Size

15.3MB
MD5

4e129053bde0489a88814b6e4b5bd689
SHA1

0853fc4612f1e7793f0e5594eba5238134e84dfb
SHA256

3891061e682be5c8af8c8afe5685139f340360c4258920b541a6de618a095c51
SHA512

ed519231fd8535ccdd06bf8cc810bbd87b08bac2e46c129d8e12470f42366280609b8f588d83b92db78341fb394b80c4377dec306f03a5133b4728affe5172a5
SSDEEP

393216:T3aaqn3zTRDcZCywpWHBgyh2MtSTAXvQIgtpnFQDDtl9MSZsQ+8/nw1p80VHRV:WaqnRDKpw0HB2MtSTAXvQttpnFQDDt0p

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2664	2716	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2944 wrote to memory of 2716	2944	rundll32.exe	30
PID 2716 wrote to memory of 2664	2716	rundll32.exe	31
PID 2716 wrote to memory of 2664	2716	rundll32.exe	31
PID 2716 wrote to memory of 2664	2716	rundll32.exe	31
PID 2716 wrote to memory of 2664	2716	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\module\VastPlayer\VastPlayer.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\module\VastPlayer\VastPlayer.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 252
    3⤵
    - Program crash
    PID:2664

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

Windows 7 deprecation

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