29ac2e0d0a5ced71cbbbbca2b01ae299d9f39af646e494675cedec3777284260

General

Target
bd8cf47c7fc24765266f7cd9c0ec2216.exe
Size 486KB
Sample231222-rl4fyahaan
SHA256 29ac2e0d0a5ced71cbbbbca2b01ae299d9f39af646e494675cedec3777284260
MD5 bd8cf47c7fc24765266f7cd9c0ec2216
SHA1 94c98df945d8dec7c272af1ee4a9f52cb721690a
SHA512 72a220ec71c6abcac2c9bef552de154fccb88cef23580122d75b5f7cf438efb3cbe2105b3534e1d630616cc6bda20686c5926324ab8144b3629af4b319e1d649
SSDEEP 12288:6zcRD02J4Sq2vHGB67KWKKmD68qLz05hEQVJsOmzxDB:4cRToImoAW8KIOHl
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 4 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bd8cf47c7fc24765266f7cd9c0ec2216.exe"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bd8cf47c7fc24765266f7cd9c0ec2216.exe"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bd8cf47c7fc24765266f7cd9c0ec2216.exe"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bd8cf47c7fc24765266f7cd9c0ec2216.exe"	bd8cf47c7fc24765266f7cd9c0ec2216.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	bd8cf47c7fc24765266f7cd9c0ec2216.exe

Disables Task Manager via registry modification
evasion

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ja.lnk	bd8cf47c7fc24765266f7cd9c0ec2216.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4648-0-0x0000000000400000-0x00000000004E0000-memory.dmp	upx
behavioral2/memory/4648-9-0x0000000000400000-0x00000000004E0000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4648-9-0x0000000000400000-0x00000000004E0000-memory.dmp	autoit_exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer Protected Mode 1 TTPs 5 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0\2500 = "3"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	bd8cf47c7fc24765266f7cd9c0ec2216.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	bd8cf47c7fc24765266f7cd9c0ec2216.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main	bd8cf47c7fc24765266f7cd9c0ec2216.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4648	bd8cf47c7fc24765266f7cd9c0ec2216.exe
4648	bd8cf47c7fc24765266f7cd9c0ec2216.exe
4648	bd8cf47c7fc24765266f7cd9c0ec2216.exe
4648	bd8cf47c7fc24765266f7cd9c0ec2216.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4648	bd8cf47c7fc24765266f7cd9c0ec2216.exe
4648	bd8cf47c7fc24765266f7cd9c0ec2216.exe

System policy modification 1 TTPs 8 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Associations\LowRiskFileTypes = ".exe"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Associations\ModRiskFileTypes = ".doc;.pdf;.xls;.exe"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu = "1"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDesktop = "1"	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Associations	bd8cf47c7fc24765266f7cd9c0ec2216.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Associations\DefaultFileTypeRisk = "1807"	bd8cf47c7fc24765266f7cd9c0ec2216.exe

C:\Users\Admin\AppData\Local\Temp\bd8cf47c7fc24765266f7cd9c0ec2216.exe
"C:\Users\Admin\AppData\Local\Temp\bd8cf47c7fc24765266f7cd9c0ec2216.exe"
1⤵
- Modifies WinLogon for persistence
- Disables RegEdit via registry modification
- Drops startup file
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:4648