qakbot | ed89c55ffb07c4e94576eada0c0a91d86988772535844fdd8d784702934c66f3

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

rundll32.exe

description	ioc	process
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
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

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

636 schtasks.exe

pid	process
636	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

1144 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

rundll32.exeWerFault.exe

pid	process
3420	rundll32.exe
3420	rundll32.exe
3420	rundll32.exe
3420	rundll32.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe
196	WerFault.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

rundll32.exe

pid process

3420 rundll32.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 196 WerFault.exe
Token: SeBackupPrivilege 196 WerFault.exe
Token: SeDebugPrivilege 196 WerFault.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1144 EXCEL.EXE
1144 EXCEL.EXE

description	pid	process
Token: SeRestorePrivilege	196	WerFault.exe
Token: SeBackupPrivilege	196	WerFault.exe
Token: SeDebugPrivilege	196	WerFault.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE
1144	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exeexplorer.exeregsvr32.exe

description	pid	process	target process
PID 1144 wrote to memory of 3492	1144	EXCEL.EXE	rundll32.exe
PID 1144 wrote to memory of 3492	1144	EXCEL.EXE	rundll32.exe
PID 3492 wrote to memory of 3420	3492	rundll32.exe	rundll32.exe
PID 3492 wrote to memory of 3420	3492	rundll32.exe	rundll32.exe
PID 3492 wrote to memory of 3420	3492	rundll32.exe	rundll32.exe
PID 3420 wrote to memory of 3968	3420	rundll32.exe	explorer.exe
PID 3420 wrote to memory of 3968	3420	rundll32.exe	explorer.exe
PID 3420 wrote to memory of 3968	3420	rundll32.exe	explorer.exe
PID 3420 wrote to memory of 3968	3420	rundll32.exe	explorer.exe
PID 3420 wrote to memory of 3968	3420	rundll32.exe	explorer.exe
PID 3968 wrote to memory of 636	3968	explorer.exe	schtasks.exe
PID 3968 wrote to memory of 636	3968	explorer.exe	schtasks.exe
PID 3968 wrote to memory of 636	3968	explorer.exe	schtasks.exe
PID 724 wrote to memory of 3280	724	regsvr32.exe	regsvr32.exe
PID 724 wrote to memory of 3280	724	regsvr32.exe	regsvr32.exe
PID 724 wrote to memory of 3280	724	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\document-1406506371.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1144

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\idefje.ekfd,DllRegisterServer
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3492

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\idefje.ekfd,DllRegisterServer
3⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3420

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:3968

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn fwfqreo /tr "regsvr32.exe -s \"C:\Users\Admin\idefje.ekfd\"" /SC ONCE /Z /ST 15:55 /ET 16:07
5⤵
- Creates scheduled task(s)
PID:636

\??\c:\windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\idefje.ekfd"
1⤵
- Suspicious use of WriteProcessMemory
PID:724

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\idefje.ekfd"
2⤵
- Loads dropped DLL
PID:3280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3280 -s 596
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:196

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