b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3

Resubmissions

09/08/2023, 09:03

230809-kz8jgsaa7310

21/12/2021, 11:54

211221-n246maebcn10

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
09/08/2023, 09:03

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General

Target
b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Size 68KB
Sample230809-kz8jgsaa73
SHA256 b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3
MD5 ae3acfb74780b06e60c44e545597d5d4
SHA1 42498d0ad9b494c2f79a5dbfa199d4c570bf223a
SHA512 a0b40bc9ec6653db668c183b355f4ebe9be84a008d901d9a6d24a7ed36a62388ab873f827c2f714640fc6ebf3560be40e75669c7eff13b6550a47ec42e088f05
SSDEEP 1536:g3Mz8uRmsoOhHywGaoFyBmGkONWhP05F3:Lw8G31QwG8hs5F3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Windows\\winsvcscu.exe"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Users\\Admin\\winsvcscu.exe"	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\winsvcscu.exe	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
File opened for modification	C:\Windows\winsvcscu.exe	b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe

C:\Users\Admin\AppData\Local\Temp\b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe
"C:\Users\Admin\AppData\Local\Temp\b4a5ecd4285c5431b486740ce111211df90486d4ba1fe189e5cbbcd02ec72ed3.exe"
1⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
PID:3500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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