837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a

General

Target

837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe
Size

839KB
MD5

64751baac6dd6b2df90f45316ab23fd3
SHA1

deb471a7021e92e4a22b51aa77ad5307a3ae49ce
SHA256

837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a
SHA512

92ea020e7d8cc88824e9be5b2816b53b08b55cbb86616219ba8468e440dc6ee8f75fb44528b8c5c0f8c70f9d6a994ec039491583d3761ae2dc3180d272e1e469
SSDEEP

24576:7pS04YNEMuExDiU6E5R9s8xY/2l/dmtnIbt+rn:7L4auS+UjfU2TmdIbt+r

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2976	WindowsInput.exe
2884	AudioDriver.exe

Loads dropped DLL 2 IoCs

pid	Process
2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe
2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe
File opened for modification	C:\Windows\SysWOW64\WindowsInput.InstallLog	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.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	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe
2884	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2884	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2884	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2884	AudioDriver.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2976	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	29
PID 2412 wrote to memory of 2976	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	29
PID 2412 wrote to memory of 2976	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	29
PID 2412 wrote to memory of 2976	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	29
PID 2412 wrote to memory of 2884	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	30
PID 2412 wrote to memory of 2884	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	30
PID 2412 wrote to memory of 2884	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	30
PID 2412 wrote to memory of 2884	2412	837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe	30

C:\Users\Admin\AppData\Local\Temp\837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe
"C:\Users\Admin\AppData\Local\Temp\837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2976
- 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
  - Suspicious use of SetWindowsHookEx
  PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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
64751baac6dd6b2df90f45316ab23fd3

SHA1
deb471a7021e92e4a22b51aa77ad5307a3ae49ce

SHA256
837b31dfa68d937447d015ade4cc424e7c8bf3ca5eb5a6b7870fdbc2f493bd4a

SHA512
92ea020e7d8cc88824e9be5b2816b53b08b55cbb86616219ba8468e440dc6ee8f75fb44528b8c5c0f8c70f9d6a994ec039491583d3761ae2dc3180d272e1e469

Download Submit
C:\Windows\SysWOW64\WindowsInput.InstallLog

Filesize
224B

MD5
e469dda91ae810a1f94c96060f3f8a65

SHA1
0b4b3b0f6f937016b1e045ce5313ee2a65a38630

SHA256
d42fee8db8eb0e047ca53ad59b1c9bc69fe04993be36fec502e3532371908842

SHA512
2eb4037361c03e195c642a53f55a3182a6df19903db503060e366f2394750e64ae04fdaace61ef5a6dba649defc88322d78edd2928bc53ebd1ce11d68cc88dac

Download Submit
C:\Windows\SysWOW64\WindowsInput.InstallLog

Filesize
597B

MD5
c2291863df7c2d3038ce3c22fa276506

SHA1
7b7d2bc07a6c35523807342c747c9b6a19f3184e

SHA256
14504199bede3f46129969dbd2b7680f2e5b7fcd73a3e427ce1bb6217a6d13da

SHA512
00bf40174a67e3e663d18a887c5b461a1e5ead0b27f0a139d87969158c58f4ca72cfa5a731dda239356192ca4cb5ac6ae2b0e37401d534e686cabacd3cbee8fa

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e854a4636afc652b320e12e50ba4080e

SHA1
8a4ac6ecc22ee5f3a8ec846d38b41ff18c641fdc

SHA256
94b9c78c6fa2bf61fba20a08ad4563f7dd2f5668c28eff227965ce0a2032d5d5

SHA512
30aabd5079b6ed0948eb70fd18e9166096e4ba5d1d47fc35b7270f931d19bbe6cd929b6010f70297bf5272dc5a79e2523721354d211c4080d68ad8d17e316118

Download Submit
memory/2412-0-0x0000000074AE1000-0x0000000074AE2000-memory.dmp

Filesize
4KB

Download
memory/2412-1-0x0000000074AE0000-0x000000007508B000-memory.dmp

Filesize
5.7MB

Download
memory/2412-2-0x0000000074AE0000-0x000000007508B000-memory.dmp

Filesize
5.7MB

Download
memory/2412-46-0x0000000074AE0000-0x000000007508B000-memory.dmp

Filesize
5.7MB

Download
memory/2976-9-0x000007FEF68AE000-0x000007FEF68AF000-memory.dmp

Filesize
4KB

Download
memory/2976-19-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2976-20-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2976-36-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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