f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3

General

Target

f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe
Size

839KB
MD5

3af27f4500a05a899f9e81bd808181c7
SHA1

c7081e8ac59d614bef9c92bdc1987399fd238baf
SHA256

f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3
SHA512

8b57ac05053722c893685624d5575b007f61066f11488d3a81ee5b64a0adeb64f34242b6d4d9fa9faf9c8d70de2c5d0e7ffdc36764a0651260ef7c788df26272
SSDEEP

24576:kjS04YNEMuExDiU6E5R9s8xY/2l/dOtnIbt+rv:k54auS+UjfU2TOdIbt+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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe

Executes dropped EXE 1 IoCs

pid	Process
2132	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe
File created	C:\Windows\assembly\Desktop.ini	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.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	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe
2132	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2132	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2132	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 2132	5048	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe	83
PID 5048 wrote to memory of 2132	5048	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe	83
PID 5048 wrote to memory of 2132	5048	f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe	83

C:\Users\Admin\AppData\Local\Temp\f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.exe
"C:\Users\Admin\AppData\Local\Temp\f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3.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:5048
- 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:2132

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
839KB

MD5
3af27f4500a05a899f9e81bd808181c7

SHA1
c7081e8ac59d614bef9c92bdc1987399fd238baf

SHA256
f5e832e6b5c578015e05abd941c4b0d486364f77d712fe5a289b426b311bb0b3

SHA512
8b57ac05053722c893685624d5575b007f61066f11488d3a81ee5b64a0adeb64f34242b6d4d9fa9faf9c8d70de2c5d0e7ffdc36764a0651260ef7c788df26272

Download Submit
memory/2132-18-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2132-20-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2132-21-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/5048-0-0x0000000075392000-0x0000000075393000-memory.dmp

Filesize
4KB

Download
memory/5048-1-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/5048-2-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/5048-19-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download

Analysis

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