afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\userun32 = "c:\\windows\\userun32.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\internat = "c:\\windows\\internat.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\internat\ImagePath = "c:\\windows\\internat.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2156-0-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral2/memory/2156-1-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral2/files/0x000800000002345b-10.dat	upx
behavioral2/memory/2156-18-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral2/memory/2156-19-0x0000000000400000-0x000000000049F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\internat = "c:\\windows\\internat.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\internat = "c:\\windows\\internat.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass32 = "c:\\windows\\lsass32.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\z:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\r:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\q:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\j:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\i:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\h:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\e:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\y:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\x:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\u:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\t:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\k:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\s:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\p:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\l:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\g:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\w:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\v:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\o:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\n:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened (read-only)	\??\m:	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\regedit.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

Drops file in Windows directory 13 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\userun32.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened for modification	\??\c:\windows\calc.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened for modification	\??\c:\windows\regedit2.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened for modification	\??\c:\windows\lsass32.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\userun32.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\calc.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\Ãëàâíîå ìåíþ\Ïðîãðàììû\Àâòîçàãðóçêà\msoffice.scr	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\Start Menu\Programs\Startup\msoffice.scr	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened for modification	\??\c:\windows\mui\modem.sys	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\internat.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\regedit2.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File opened for modification	\??\c:\windows\internat.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
File created	\??\c:\windows\lsass32.exe	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6ABE4A8-C73A-305A-BFEF-E4FA2BC9D8A9}	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6ABE4A8-C73A-305A-BFEF-E4FA2BC9D8A9}\ThisEXE = "c:\\users\\admin\\appdata\\local\\temp\\afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6ABE4A8-C73A-305A-BFEF-E4FA2BC9D8A9}\VerProg = "113"	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2156	afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe

C:\Users\Admin\AppData\Local\Temp\afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe
"C:\Users\Admin\AppData\Local\Temp\afa9dd688b958bd13c42cca8bad013c5e14c1ce1136cb031d4e464057a90506e.exe"
1⤵
- Adds policy Run key to start application
- Sets service image path in registry
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry