6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3 | Triage

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Analysis

max time kernel
299s
max time network
298s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
25-04-2024 12:58

Sharing

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General

Target

6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe
Size

96KB
MD5

131962bf60ac02f759cf2f57808eaee9
SHA1

2636de442f3fc52c0a9640875b74ff9d236a359d
SHA256

6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3
SHA512

ee787f0e2ae36c3ed046489be23a0335a325b3a9f38121c6ecd3e1c7d166abbc6779effc13451b01f6838eaa4e299445bc25b1b524110667580bcfbe824a9836
SSDEEP

1536:wB3XC0TP7sRav52HE9jMeR3MnQqrMVMnxb/n6cgNwf5mfF9zz51zpJ7Hx1eqkyF0:wBa01YbOfF9b7R1eqkDF

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

Processes:

audiodg.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	audiodg.exe

Executes dropped EXE 1 IoCs

Processes:

audiodg.exe

pid process

4668 audiodg.exe

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

Modify Registry

Processes:

audiodg.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	audiodg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	audiodg.exe

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Audio Device Graph Isolation = "C:\\11222262127430\\audiodg.exe"	6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Audio Device Graph Isolation = "C:\\11222262127430\\audiodg.exe"	6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe

description	pid	process	target process
PID 3336 wrote to memory of 4668	3336	6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe	audiodg.exe
PID 3336 wrote to memory of 4668	3336	6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe	audiodg.exe
PID 3336 wrote to memory of 4668	3336	6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe	audiodg.exe

C:\Users\Admin\AppData\Local\Temp\6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe
"C:\Users\Admin\AppData\Local\Temp\6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3336

C:\11222262127430\audiodg.exe
C:\11222262127430\audiodg.exe
2⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
PID:4668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Impair Defenses

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\11222262127430\audiodg.exe

Filesize
96KB

MD5
131962bf60ac02f759cf2f57808eaee9

SHA1
2636de442f3fc52c0a9640875b74ff9d236a359d

SHA256
6dfdfb7f2716f3e3f684e1b8c92431563e3f65d2c64df24d6dda1c8bc6a198a3

SHA512
ee787f0e2ae36c3ed046489be23a0335a325b3a9f38121c6ecd3e1c7d166abbc6779effc13451b01f6838eaa4e299445bc25b1b524110667580bcfbe824a9836

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