b13ade9fa58f96d8f03e4e241455c1af226d6b654e2ad48a8ae7d3a61f7ad64d

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-10-2024 22:57

Target

$PLUGINSDIR/bass.dll
Size

101KB
MD5

a8af308ff01b4477657955fbf0cc8408
SHA1

0794c059f0326e4a71be8a3ee4ac17a657d90d88
SHA256

14a38f56be50a3829eb1eda2a908da2de5913f81d5cb01d8b668593d0fc36594
SHA512

9e221967db95d4b86bf311891193dfd1515806aa0d43198d3bc26a17d77f06f212ab9dba1ca8575f50d224380e8b109529faccf2f56daac834da83a83677a0fd
SSDEEP

3072:kR+vccy3LIweO1vFCLPkG9dfSD0BXZXmpw69Qe:S+vccy3hF1vFCT99dTBX5mupe

Score

3^/10

discovery

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

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 1864	2336	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\bass.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2336

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:1864

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1864-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1864-2-0x000000001004C000-0x000000001004D000-memory.dmp

Filesize
4KB

Download
memory/1864-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download