550321da5b10c472bc719bca2c0df74b240f80eff828079eb5253598fe112ae3

Analysis

max time kernel
30s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
05-10-2024 12:12

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General

Target

bass.dll
Size

90KB
MD5

8f5b9b73d33e8c99202b5058cb6dce51
SHA1

102699b1dc7e03c9041115f5e3b178f1dab1a27a
SHA256

3f04620d6627abe5c3b4747faf26603ab7a006c81b2021ab4689bdd7033bb4cd
SHA512

89d830d1ed0c55882d1cc77d1a87b193cbffd8b96010d727fad6cd2668ee94c7acfb565ddb1be5b55c8caf9791947b62e8d87fa4896d98124ca2caae0053c9df
SSDEEP

1536:fq5gk9BPaPT8yWZv6UXq+BpSAaSv5vfwKaGorBWHiauTXJSJ:fq5r9BCPT8yZfKahrsiauTZo

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 2256 wrote to memory of 4024	2256	rundll32.exe	78
PID 2256 wrote to memory of 4024	2256	rundll32.exe	78
PID 2256 wrote to memory of 4024	2256	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bass.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bass.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4024

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/4024-0-0x0000000011000000-0x0000000011055000-memory.dmp

Filesize
340KB

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