63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d | Triage

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Analysis

max time kernel
300s
max time network
300s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25-04-2024 13:00

Sharing

Report Analysis Logs

General

Target

63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe
Size

356KB
MD5

6ffbff0cb624b4965fbea168ec43aea8
SHA1

5be9a3b2238e13e0fa17ada96e4bb53a5b58fd81
SHA256

63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d
SHA512

edbcb9de0b4ff80da0debb6c0d8be7198efac3ba5534997396f4461a4b43dd897e09f126e68fe928e7c5f48446583c7ebce7757f4dd72f9bdb19a5e7934a04c0
SSDEEP

6144:LXj4tVpmiFWkppKTXD6x/xai9VJrU+aUh5Px9YKRTw6pPZtM/FSpECb:LXj4tyxMuT6jp9Vvh5PPdZM/0GCb

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\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

Executes dropped EXE 1 IoCs

Processes:

audiodg.exe

pid process

2208 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\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\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

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Audio Device Graph Isolation = "C:\\22823378713552\\audiodg.exe"	63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Audio Device Graph Isolation = "C:\\22823378713552\\audiodg.exe"	63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe

description	pid	process	target process
PID 5088 wrote to memory of 2208	5088	63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe	audiodg.exe
PID 5088 wrote to memory of 2208	5088	63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe	audiodg.exe
PID 5088 wrote to memory of 2208	5088	63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe	audiodg.exe

C:\Users\Admin\AppData\Local\Temp\63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe
"C:\Users\Admin\AppData\Local\Temp\63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5088

C:\22823378713552\audiodg.exe
C:\22823378713552\audiodg.exe
2⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
PID:2208

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:3128

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\22823378713552\audiodg.exe
Filesize
356KB

MD5
6ffbff0cb624b4965fbea168ec43aea8

SHA1
5be9a3b2238e13e0fa17ada96e4bb53a5b58fd81

SHA256
63b087a9fa01c00b9f07712fa4c46e461245d5364606dd9dc10130d93415bd6d

SHA512
edbcb9de0b4ff80da0debb6c0d8be7198efac3ba5534997396f4461a4b43dd897e09f126e68fe928e7c5f48446583c7ebce7757f4dd72f9bdb19a5e7934a04c0

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