b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1

General

Target

b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe
Size

845KB
MD5

6546eb6df97390317bd8254abc7bb5d4
SHA1

4e2ae2993226821804afefbd65e4b350f4b0c841
SHA256

b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1
SHA512

1dfc4e5d7b5e0d687f55c90a6e20a683646109a0e59d4f13b6b28331b16eea094199818930e4805c8360359f3a3a8b7e7452b322fede5c9c4860351999129f2c
SSDEEP

24576:tvS04YNEMuExDiU6E5R9s8xY/2l/dH0Ibt+re:tF4auS+UjfU2TH0Ibt+r

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe

Executes dropped EXE 1 IoCs

pid	Process
3720	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe
File opened for modification	C:\Windows\assembly	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe
File created	C:\Windows\assembly\Desktop.ini	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe
3720	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3720	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3720	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3720	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3720	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 3720	2680	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe	83
PID 2680 wrote to memory of 3720	2680	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe	83
PID 2680 wrote to memory of 3720	2680	b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe	83

C:\Users\Admin\AppData\Local\Temp\b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe
"C:\Users\Admin\AppData\Local\Temp\b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

Filesize
845KB

MD5
6546eb6df97390317bd8254abc7bb5d4

SHA1
4e2ae2993226821804afefbd65e4b350f4b0c841

SHA256
b3368bbd2146f02b1203d743fa70a0cb890bb9fed80086cedcef28be6ba155c1

SHA512
1dfc4e5d7b5e0d687f55c90a6e20a683646109a0e59d4f13b6b28331b16eea094199818930e4805c8360359f3a3a8b7e7452b322fede5c9c4860351999129f2c

Download Submit
memory/2680-0-0x0000000074812000-0x0000000074813000-memory.dmp

Filesize
4KB

Download
memory/2680-1-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/2680-2-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/2680-19-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/3720-18-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/3720-20-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/3720-21-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/3720-22-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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