8febbfb26ae58d34ca70187f364c73d9fad69b2e34bfd64faff6a5d7f95db0dd

Analysis

max time kernel
413s
max time network
1134s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
21-09-2024 17:08

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General

Target

$PLUGINSDIR/Bass.dll
Size

101KB
MD5

a8af308ff01b4477657955fbf0cc8408
SHA1

0794c059f0326e4a71be8a3ee4ac17a657d90d88
SHA256

14a38f56be50a3829eb1eda2a908da2de5913f81d5cb01d8b668593d0fc36594
SHA512

9e221967db95d4b86bf311891193dfd1515806aa0d43198d3bc26a17d77f06f212ab9dba1ca8575f50d224380e8b109529faccf2f56daac834da83a83677a0fd
SSDEEP

3072:kR+vccy3LIweO1vFCLPkG9dfSD0BXZXmpw69Qe:S+vccy3hF1vFCT99dTBX5mupe

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 3 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 4808	4648	rundll32.exe	78
PID 4648 wrote to memory of 4808	4648	rundll32.exe	78
PID 4648 wrote to memory of 4808	4648	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Bass.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4648
- 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:4808

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/4808-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

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