871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06

General

Target

871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe
Size

839KB
MD5

5264b17696382401b5b5e2fb09df38fb
SHA1

4552ce054f7022379ffddbf21f14ae3716cca53c
SHA256

871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06
SHA512

d51f39bd3e533d9a5517f77b1ab6ee094b24f1ff286c58e38d3a44e25f82a4913a8864c21490a9c1e1bcc0f4a0cf429ac0174b51a6d9594d0d90c19aad68ee66
SSDEEP

24576:ypS04YNEMuExDiU6E5R9s8xY/2l/dmtnIbt+rP:yL4auS+UjfU2TmdIbt+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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe

Executes dropped EXE 1 IoCs

pid	Process
3172	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe
File created	C:\Windows\assembly\Desktop.ini	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.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	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe
3172	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3172	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3172	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3172	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 3172	4476	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe	83
PID 4476 wrote to memory of 3172	4476	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe	83
PID 4476 wrote to memory of 3172	4476	871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe	83

C:\Users\Admin\AppData\Local\Temp\871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.exe
"C:\Users\Admin\AppData\Local\Temp\871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06.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:4476
- 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:3172

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

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Downloads

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

Filesize
839KB

MD5
5264b17696382401b5b5e2fb09df38fb

SHA1
4552ce054f7022379ffddbf21f14ae3716cca53c

SHA256
871d03ee6134fe35fc080e22207241769d18a387974fa5bbf99b2534b2f0ee06

SHA512
d51f39bd3e533d9a5517f77b1ab6ee094b24f1ff286c58e38d3a44e25f82a4913a8864c21490a9c1e1bcc0f4a0cf429ac0174b51a6d9594d0d90c19aad68ee66

Download Submit
memory/3172-19-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/3172-20-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/3172-21-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-0-0x0000000074F32000-0x0000000074F33000-memory.dmp

Filesize
4KB

Download
memory/4476-1-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-2-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4476-18-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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