b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c

General

Target

b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe
Size

845KB
MD5

57c278e538d7ae90c2c763f558b33549
SHA1

9aad7e3447dd4871bc8b0a0467c84c1dd1c8a3be
SHA256

b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c
SHA512

6f8706812183a72280b2714a9014f002a3d3a675fdafeafd318575eae911b3acbd291d8672d55b5ccea8feb5192546c19bc3e8994ce4d5eff24c70219342f6d5
SSDEEP

24576:msS04YNEMuExDiU6E5R9s8xY/2l/dgrIbt+ry:mE4auS+UjfU2TgrIbt+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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe

Executes dropped EXE 1 IoCs

pid	Process
3248	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe
File created	C:\Windows\assembly\Desktop.ini	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe
File opened for modification	C:\Windows\assembly	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe
File created	C:\Windows\assembly\Desktop.ini	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.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	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe
3248	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3248	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3248	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3248	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 3248	3088	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe	83
PID 3088 wrote to memory of 3248	3088	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe	83
PID 3088 wrote to memory of 3248	3088	b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe	83

C:\Users\Admin\AppData\Local\Temp\b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.exe
"C:\Users\Admin\AppData\Local\Temp\b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c.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:3088
- 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:3248

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
845KB

MD5
57c278e538d7ae90c2c763f558b33549

SHA1
9aad7e3447dd4871bc8b0a0467c84c1dd1c8a3be

SHA256
b2dcee19cff4fcefe1998fa56e892054f9b282324e32113071328b7c866df09c

SHA512
6f8706812183a72280b2714a9014f002a3d3a675fdafeafd318575eae911b3acbd291d8672d55b5ccea8feb5192546c19bc3e8994ce4d5eff24c70219342f6d5

Download Submit
memory/3088-0-0x0000000074F02000-0x0000000074F03000-memory.dmp

Filesize
4KB

Download
memory/3088-1-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-2-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3088-18-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3248-19-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3248-20-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3248-21-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3248-22-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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