2c0b6e9da517e46f5f6ff794dce882f7d90e74323dfd08987a94faf31881f385

Analysis

max time kernel
140s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 23:17

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General

Target

rizzler123.exe
Size

839KB
MD5

44656648138039b9c14643dadc0373a8
SHA1

f2ece89a49ab4ba8b2294157637c61624e45b00f
SHA256

2c0b6e9da517e46f5f6ff794dce882f7d90e74323dfd08987a94faf31881f385
SHA512

75fd45754d543aab0a7f1082aaca4549c538379334b0ed7c58793a14550fe6bdb5228a4a58ae016927f37ffdfdca891c110fb8db725a80198d39ed06dc0a5da0
SSDEEP

24576:MxdS04YNEMuExDiU6E5R9s8xY/2l/d2tnIbt+ry:0P4auS+UjfU2T2dIbt+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

Processes:

rizzler123.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	rizzler123.exe

Executes dropped EXE 1 IoCs

Processes:

AudioDriver.exe

pid	Process
3716	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

rizzler123.exe

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	rizzler123.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	rizzler123.exe

Drops file in Windows directory 3 IoCs

Processes:

rizzler123.exe

description	ioc	Process
File opened for modification	C:\Windows\assembly	rizzler123.exe
File created	C:\Windows\assembly\Desktop.ini	rizzler123.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	rizzler123.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

Processes:

rizzler123.exeAudioDriver.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rizzler123.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes:

AudioDriver.exe

pid	Process
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe
3716	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AudioDriver.exe

description	pid	Process
Token: SeDebugPrivilege	3716	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AudioDriver.exe

pid	Process
3716	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

AudioDriver.exe

pid	Process
3716	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rizzler123.exe

description	pid	Process	procid_target
PID 2616 wrote to memory of 3716	2616	rizzler123.exe	82
PID 2616 wrote to memory of 3716	2616	rizzler123.exe	82
PID 2616 wrote to memory of 3716	2616	rizzler123.exe	82

C:\Users\Admin\AppData\Local\Temp\rizzler123.exe
"C:\Users\Admin\AppData\Local\Temp\rizzler123.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:2616
- 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:3716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
44656648138039b9c14643dadc0373a8

SHA1
f2ece89a49ab4ba8b2294157637c61624e45b00f

SHA256
2c0b6e9da517e46f5f6ff794dce882f7d90e74323dfd08987a94faf31881f385

SHA512
75fd45754d543aab0a7f1082aaca4549c538379334b0ed7c58793a14550fe6bdb5228a4a58ae016927f37ffdfdca891c110fb8db725a80198d39ed06dc0a5da0

Download Submit
memory/2616-0-0x0000000074E92000-0x0000000074E93000-memory.dmp

Filesize
4KB

Download
memory/2616-1-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/2616-2-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/2616-19-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/3716-20-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/3716-21-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/3716-18-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/3716-22-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download