6a0ac5a6cef15e181e0808a20033f12af37c0ab5d80d6eba62ca3c98b430a740

Analysis

max time kernel
91s
max time network
94s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
22-10-2024 14:45

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General

Target

$PLUGINSDIR/bass.dll
Size

107KB
MD5

c0b11a7e60f69241ddcb278722ab962f
SHA1

ff855961eb5ed8779498915bab3d642044fc9bb1
SHA256

a8d979460e970e84eacce36b8a68ae5f6b9cc0fe16e05a6209b4ead52b81b021
SHA512

cb040aca6592310bffb72c898b8eb3ca8a46ff2df50212634c637593c58683c8ab62e0188da7aea362e1b063ae5db55cf4bf474295922af0ab94a526465cc472
SSDEEP

3072:/T2x0givE7LLCQv6vRoRJrdEQeX0m9JQfrob:/T2Ogt7ag65kNqjJDb

Score

3^/10

discovery

Malware Config

Signatures

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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 2516 wrote to memory of 3536	2516	rundll32.exe	77
PID 2516 wrote to memory of 3536	2516	rundll32.exe	77
PID 2516 wrote to memory of 3536	2516	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\bass.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\bass.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3536

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

Replay Monitor

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Downloads

memory/3536-0-0x0000000000C60000-0x0000000000C78000-memory.dmp

Filesize
96KB

Download
memory/3536-2-0x0000000074880000-0x00000000748D0000-memory.dmp

Filesize
320KB

Download
memory/3536-4-0x0000000074881000-0x00000000748A7000-memory.dmp

Filesize
152KB

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