qakbot | aed3b7b54243021aa6b20fda0ea7bb46a2065a1371202b3bab86482fa3f5bd46

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\Service	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_SANU&PROD_SANU_DVD-ROM\4&37CE57BA&0&010000	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Sanu&Prod_Sanu_DVD-ROM\4&37ce57ba&0&010000\DeviceDesc	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Sanu&Prod_Sanu_DVD-ROM\4&37ce57ba&0&010000\Service	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_&PROD_HEARTDISK\4&37CE57BA&0&000000	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\DeviceDesc	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3936 schtasks.exe

pid	process
3936	schtasks.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

640 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

rundll32.exeWerFault.exeWerFault.exe

pid	process
740	rundll32.exe
740	rundll32.exe
740	rundll32.exe
740	rundll32.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
3596	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe
2284	WerFault.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

rundll32.exe

pid process

740 rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

WerFault.exeWerFault.exe

description	pid	process
Token: SeRestorePrivilege	3596	WerFault.exe
Token: SeBackupPrivilege	3596	WerFault.exe
Token: SeDebugPrivilege	3596	WerFault.exe
Token: SeDebugPrivilege	2284	WerFault.exe

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE
640	EXCEL.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exeexplorer.exerundll32.exeregsvr32.exe

description	pid	process	target process
PID 640 wrote to memory of 3588	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 3588	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 3592	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 3592	640	EXCEL.EXE	rundll32.exe
PID 3592 wrote to memory of 740	3592	rundll32.exe	rundll32.exe
PID 3592 wrote to memory of 740	3592	rundll32.exe	rundll32.exe
PID 3592 wrote to memory of 740	3592	rundll32.exe	rundll32.exe
PID 740 wrote to memory of 4032	740	rundll32.exe	explorer.exe
PID 740 wrote to memory of 4032	740	rundll32.exe	explorer.exe
PID 740 wrote to memory of 4032	740	rundll32.exe	explorer.exe
PID 740 wrote to memory of 4032	740	rundll32.exe	explorer.exe
PID 740 wrote to memory of 4032	740	rundll32.exe	explorer.exe
PID 4032 wrote to memory of 3936	4032	explorer.exe	schtasks.exe
PID 4032 wrote to memory of 3936	4032	explorer.exe	schtasks.exe
PID 4032 wrote to memory of 3936	4032	explorer.exe	schtasks.exe
PID 640 wrote to memory of 3048	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 3048	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 3932	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 3932	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 2120	640	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 2120	640	EXCEL.EXE	rundll32.exe
PID 2120 wrote to memory of 3716	2120	rundll32.exe	rundll32.exe
PID 2120 wrote to memory of 3716	2120	rundll32.exe	rundll32.exe
PID 2120 wrote to memory of 3716	2120	rundll32.exe	rundll32.exe
PID 3244 wrote to memory of 3860	3244	regsvr32.exe	regsvr32.exe
PID 3244 wrote to memory of 3860	3244	regsvr32.exe	regsvr32.exe
PID 3244 wrote to memory of 3860	3244	regsvr32.exe	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\CompensationClaim-2000459547-02022021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\HYGFR.HYGF,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3588

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\HYGFR.HYGF1,DllRegisterServer
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3592

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\HYGFR.HYGF1,DllRegisterServer
3⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:4032

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn nzfwujjjn /tr "regsvr32.exe -s \"C:\Users\Admin\HYGFR.HYGF1\"" /SC ONCE /Z /ST 10:19 /ET 10:31
5⤵
- Creates scheduled task(s)
PID:3936

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\HYGFR.HYGF2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3048

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\HYGFR.HYGF3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3932

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\HYGFR.HYGF4,DllRegisterServer
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2120

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\HYGFR.HYGF4,DllRegisterServer
3⤵
- Loads dropped DLL
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 748
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3596

\??\c:\windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\HYGFR.HYGF1"
1⤵
- Suspicious use of WriteProcessMemory
PID:3244

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\HYGFR.HYGF1"
2⤵
- Loads dropped DLL
PID:3860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 596
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2284

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

3

Peripheral Device Discovery

T1120

System Information Discovery

3