b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269

General

Target

b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe
Size

839KB
MD5

35019eec56f86638a5a2e48655e99d8c
SHA1

1bef4428047087898732ccc36ed3c896190092c8
SHA256

b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269
SHA512

ac4ce1fdcd2b79bf6085107aab662afd7c21c96fb5f915f2b4dca418301cafb7fd5ab6a5792f058486e3db7866a69e16271f28c305573de5cc364e1b8c16602f
SSDEEP

24576:4BS04YNEMuExDiU6E5R9s8xY/2l/dIt1Ibt+rb:4j4auS+UjfU2TIrIbt+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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe

Executes dropped EXE 1 IoCs

pid	Process
3268	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe
File created	C:\Windows\assembly\Desktop.ini	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.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	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe
3268	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3268	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3268	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 3268	1596	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe	82
PID 1596 wrote to memory of 3268	1596	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe	82
PID 1596 wrote to memory of 3268	1596	b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe	82

C:\Users\Admin\AppData\Local\Temp\b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.exe
"C:\Users\Admin\AppData\Local\Temp\b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269.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:1596
- 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 SetWindowsHookEx
  PID:3268

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
35019eec56f86638a5a2e48655e99d8c

SHA1
1bef4428047087898732ccc36ed3c896190092c8

SHA256
b22e9313124a9aa8c91f4de85a45aedb718119fc2e65d80eb72aaafb808b3269

SHA512
ac4ce1fdcd2b79bf6085107aab662afd7c21c96fb5f915f2b4dca418301cafb7fd5ab6a5792f058486e3db7866a69e16271f28c305573de5cc364e1b8c16602f

Download Submit
memory/1596-0-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

Filesize
4KB

Download
memory/1596-1-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1596-2-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1596-19-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3268-18-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3268-20-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3268-21-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3268-22-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3268-23-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3268-24-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download

Analysis

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