cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac

General

Target

cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe
Size

839KB
MD5

d20869b35a6fb9f181dc32ea1125aed4
SHA1

950758ac45697bd6b6af02b0a52e61cd8a472bb5
SHA256

cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac
SHA512

399463df0ae2c215ab5c76feef3aa0dd9f2f0d823cc8d4241b55fd5be8de58b1ddc7633f77edd997986dbb880e8a6b7d9966d77cc4d02071496d6ad8faa00103
SSDEEP

24576:ZZS04YNEMuExDiU6E5R9s8xY/2l/dWtnIbt+rD:Zb4auS+UjfU2TWdIbt+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	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe

Executes dropped EXE 1 IoCs

pid	Process
5064	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe
File created	C:\Windows\assembly\Desktop.ini	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.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	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe
5064	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5064	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5064	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
5064	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 652 wrote to memory of 5064	652	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe	83
PID 652 wrote to memory of 5064	652	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe	83
PID 652 wrote to memory of 5064	652	cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe	83

C:\Users\Admin\AppData\Local\Temp\cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.exe
"C:\Users\Admin\AppData\Local\Temp\cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac.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:652
- 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:5064

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
d20869b35a6fb9f181dc32ea1125aed4

SHA1
950758ac45697bd6b6af02b0a52e61cd8a472bb5

SHA256
cb825ebfac30b90d899777990c15d4cf8cdfb5c5df0be3dc7d6bf22ebd6490ac

SHA512
399463df0ae2c215ab5c76feef3aa0dd9f2f0d823cc8d4241b55fd5be8de58b1ddc7633f77edd997986dbb880e8a6b7d9966d77cc4d02071496d6ad8faa00103

Download Submit
memory/652-0-0x00000000749D2000-0x00000000749D3000-memory.dmp

Filesize
4KB

Download
memory/652-1-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/652-2-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/652-19-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/5064-18-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/5064-20-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download

Analysis

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