138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f

General

Target

138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
Size

845KB
MD5

87763ae22a66ea3276fe9b14d65725ea
SHA1

908228d0bba0351a4c4bf25ab4ae2b41ed520f7d
SHA256

138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f
SHA512

fdf7ba8ebc84b8cb9e3fdaf34d5c035d3456cdc671a6cf0ea1774dc73f4931d95fcdbf25605991028f5236097af6484e2aa9679baf580c15ea982e14f31f30e4
SSDEEP

24576:FvS04YNEMuExDiU6E5R9s8xY/2l/dHzIbt+ra:FF4auS+UjfU2THzIbt+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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe

Executes dropped EXE 1 IoCs

pid	Process
1856	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
7	5.tcp.eu.ngrok.io
24	5.tcp.eu.ngrok.io
44	5.tcp.eu.ngrok.io
53	5.tcp.eu.ngrok.io

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
File created	C:\Windows\assembly\Desktop.ini	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.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	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe
1856	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1856	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1856	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 1856	3668	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe	83
PID 3668 wrote to memory of 1856	3668	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe	83
PID 3668 wrote to memory of 1856	3668	138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe	83

C:\Users\Admin\AppData\Local\Temp\138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
"C:\Users\Admin\AppData\Local\Temp\138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.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:3668
- 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:1856

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
845KB

MD5
87763ae22a66ea3276fe9b14d65725ea

SHA1
908228d0bba0351a4c4bf25ab4ae2b41ed520f7d

SHA256
138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f

SHA512
fdf7ba8ebc84b8cb9e3fdaf34d5c035d3456cdc671a6cf0ea1774dc73f4931d95fcdbf25605991028f5236097af6484e2aa9679baf580c15ea982e14f31f30e4

Download Submit
memory/1856-18-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-21-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-20-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-22-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-23-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-24-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/3668-0-0x0000000074A22000-0x0000000074A23000-memory.dmp

Filesize
4KB

Download
memory/3668-1-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/3668-2-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/3668-19-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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