bbc6bbbf62040d31c403ebb6cc1fde194f4676c3f7dde52af531d88aefc0238b

Analysis

max time kernel
147s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
14-01-2025 09:15

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General

Target

idk.exe
Size

845KB
MD5

4430b4864bdb0536bb555c64f90a6fdf
SHA1

9692cd79639a1f228a389472b65ab04f3c016536
SHA256

bbc6bbbf62040d31c403ebb6cc1fde194f4676c3f7dde52af531d88aefc0238b
SHA512

b030596c8e6d605088f8bc503f0fe012cdf2398109459766dfbaf647070fe1cac3940292bd0089e334da309989129df0f6577fcfdbda58e0d15a10a8d43a436b
SSDEEP

24576:tvS04YNEMuExDiU6E5R9s8xY/2l/dHMIbt+rm:tF4auS+UjfU2THMIbt+r

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
8	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
1	6.tcp.eu.ngrok.io
4	6.tcp.eu.ngrok.io

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	idk.exe
File created	C:\Windows\assembly\Desktop.ini	idk.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	idk.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	idk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
8	AudioDriver.exe
8	AudioDriver.exe
8	AudioDriver.exe
8	AudioDriver.exe
8	AudioDriver.exe
8	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	8	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
8	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
8	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 8	2252	idk.exe	77
PID 2252 wrote to memory of 8	2252	idk.exe	77
PID 2252 wrote to memory of 8	2252	idk.exe	77

C:\Users\Admin\AppData\Local\Temp\idk.exe
"C:\Users\Admin\AppData\Local\Temp\idk.exe"
1⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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
  PID:8

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
845KB

MD5
4430b4864bdb0536bb555c64f90a6fdf

SHA1
9692cd79639a1f228a389472b65ab04f3c016536

SHA256
bbc6bbbf62040d31c403ebb6cc1fde194f4676c3f7dde52af531d88aefc0238b

SHA512
b030596c8e6d605088f8bc503f0fe012cdf2398109459766dfbaf647070fe1cac3940292bd0089e334da309989129df0f6577fcfdbda58e0d15a10a8d43a436b

Download Submit
memory/8-20-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/8-19-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/8-21-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/8-24-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/8-25-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2252-0-0x0000000074E71000-0x0000000074E72000-memory.dmp

Filesize
4KB

Download
memory/2252-1-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2252-2-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2252-18-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download