81111a1cb6f8f362cf232e21098c563fe1409160300f2a254f2a1762e5d4db04

Analysis

max time kernel
149s
max time network
148s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
23/07/2026, 13:34

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General

Target
bass_fx.dll
Size 50KB
Sample260723-qvb8dazeke
SHA256 81111a1cb6f8f362cf232e21098c563fe1409160300f2a254f2a1762e5d4db04
MD5 3ad3c0fd4dca001a2f9e707b74544919
SHA1 c6176415ecd3e8f38f976e4234325452fe1fd2a0
SHA512 436dac92e4a60dfc02c8c7a7ae496df7199c3fd15ef668bff2565f428f25be9c3ae1d0e120d64767eda1a9d4afa2e8bfeb6d047745440c3fce854080c44f42c5
SSDEEP 1536:Exe5ceArKXVX7XDZjQi5IWXiYjQizUWXiO:E05i4XrDZxIg/bUgX
TLSH
T12333CFF56D786554DDA24E70D4D98A23FEB032914FA808EB2498C0571ECABE1BF2D11F
MD5 SHA1 SHA512 SSDEEP TLSH

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

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

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 1252	1376	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bass_fx.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bass_fx.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1252

Network

MITRE ATT&CK Enterprise v16

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/1252-0-0x0000000010000000-0x0000000010013000-memory.dmp

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