Malware Analysis Report

2024-11-30 13:39

Sample ID 201029-k4hxzk14ze
Target doc_pack-2082624723.xlsb
SHA256 4f321beef4f90f185046f1f4204cf8cf7655fe7e3c2617bdb4543e03ae227b3b
Tags
qakbot tr01 1603793855 banker stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4f321beef4f90f185046f1f4204cf8cf7655fe7e3c2617bdb4543e03ae227b3b

Threat Level: Known bad

The file doc_pack-2082624723.xlsb was found to be: Known bad.

Malicious Activity Summary

qakbot tr01 1603793855 banker stealer trojan

Qakbot/Qbot

Executes dropped EXE

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious use of SetWindowsHookEx

Checks SCSI registry key(s)

Checks processor information in registry

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious behavior: AddClipboardFormatListener

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2020-10-29 04:38

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2020-10-29 04:38

Reported

2020-10-29 04:48

Platform

win7v20201028

Max time kernel

72s

Max time network

85s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-2082624723.xlsb

Signatures

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Processes

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-2082624723.xlsb

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 mindsup.in udp
N/A 166.62.28.128:443 mindsup.in tcp
N/A 8.8.8.8:53 www.download.windowsupdate.com udp
N/A 205.185.216.42:80 www.download.windowsupdate.com tcp

Files

memory/884-0-0x000007FEF6050000-0x000007FEF62CA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-10-29 04:38

Reported

2020-10-29 04:48

Platform

win10v20201028

Max time kernel

108s

Max time network

149s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-2082624723.xlsb"

Signatures

Qakbot/Qbot

trojan banker stealer qakbot

Checks SCSI registry key(s)

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Sanu&Prod_Sanu_DVD-ROM\4&37ce57ba&0&010000\Service C:\hgoitk\nkorpy\exlwhtih.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_&PROD_HEARTDISK\4&37CE57BA&0&000000 C:\hgoitk\nkorpy\exlwhtih.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\DeviceDesc C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Sanu&Prod_Sanu_DVD-ROM\4&37ce57ba&0&010000\Service C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_&PROD_HEARTDISK\4&37CE57BA&0&000000 C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_SANU&PROD_SANU_DVD-ROM\4&37CE57BA&0&010000 C:\hgoitk\nkorpy\exlwhtih.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Sanu&Prod_Sanu_DVD-ROM\4&37ce57ba&0&010000\DeviceDesc C:\hgoitk\nkorpy\exlwhtih.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\DeviceDesc C:\hgoitk\nkorpy\exlwhtih.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\Service C:\hgoitk\nkorpy\exlwhtih.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_SANU&PROD_SANU_DVD-ROM\4&37CE57BA&0&010000 C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Sanu&Prod_Sanu_DVD-ROM\4&37ce57ba&0&010000\DeviceDesc C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\Service C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 672 wrote to memory of 1308 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\hgoitk\nkorpy\exlwhtih.exe
PID 672 wrote to memory of 1308 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\hgoitk\nkorpy\exlwhtih.exe
PID 672 wrote to memory of 1308 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\hgoitk\nkorpy\exlwhtih.exe
PID 1308 wrote to memory of 3448 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\hgoitk\nkorpy\exlwhtih.exe
PID 1308 wrote to memory of 3448 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\hgoitk\nkorpy\exlwhtih.exe
PID 1308 wrote to memory of 3448 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\hgoitk\nkorpy\exlwhtih.exe
PID 1308 wrote to memory of 3368 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe
PID 1308 wrote to memory of 3368 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe
PID 1308 wrote to memory of 3368 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe
PID 1308 wrote to memory of 1304 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\Windows\SysWOW64\schtasks.exe
PID 1308 wrote to memory of 1304 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\Windows\SysWOW64\schtasks.exe
PID 1308 wrote to memory of 1304 N/A C:\hgoitk\nkorpy\exlwhtih.exe C:\Windows\SysWOW64\schtasks.exe
PID 3368 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe
PID 3368 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe
PID 3368 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe
PID 3368 wrote to memory of 3944 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Windows\SysWOW64\explorer.exe
PID 3368 wrote to memory of 3944 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Windows\SysWOW64\explorer.exe
PID 3368 wrote to memory of 3944 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Windows\SysWOW64\explorer.exe
PID 3368 wrote to memory of 3944 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe C:\Windows\SysWOW64\explorer.exe

Processes

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-2082624723.xlsb"

C:\hgoitk\nkorpy\exlwhtih.exe

"C:\hgoitk\nkorpy\exlwhtih.exe"

C:\hgoitk\nkorpy\exlwhtih.exe

C:\hgoitk\nkorpy\exlwhtih.exe /C

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn utbuzattk /tr "\"C:\hgoitk\nkorpy\exlwhtih.exe\" /I utbuzattk" /SC ONCE /Z /ST 05:45 /ET 05:57

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe /C

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 mindsup.in udp
N/A 166.62.28.128:443 mindsup.in tcp

Files

memory/672-0-0x00007FFA01020000-0x00007FFA01657000-memory.dmp

memory/1308-1-0x0000000000000000-mapping.dmp

C:\hgoitk\nkorpy\exlwhtih.exe

MD5 96967658deb7d88da248e077dc383eca
SHA1 475c6525bf12dc043e8e20fac9b73b5e5c43165b
SHA256 926a329dedbfa54478aae338e79e8c6861e345084173b2bd54d677ba73ce4342
SHA512 542781099dc56c2cc7c685e87c3962cd65405a5b2e3ec24655e26f9156b2fdbebfd8f550d959b08bfb044cfd49e8bfcff6b3ccef891257177a71dafe7750cba2

C:\hgoitk\nkorpy\exlwhtih.exe

MD5 96967658deb7d88da248e077dc383eca
SHA1 475c6525bf12dc043e8e20fac9b73b5e5c43165b
SHA256 926a329dedbfa54478aae338e79e8c6861e345084173b2bd54d677ba73ce4342
SHA512 542781099dc56c2cc7c685e87c3962cd65405a5b2e3ec24655e26f9156b2fdbebfd8f550d959b08bfb044cfd49e8bfcff6b3ccef891257177a71dafe7750cba2

C:\hgoitk\nkorpy\exlwhtih.exe

MD5 96967658deb7d88da248e077dc383eca
SHA1 475c6525bf12dc043e8e20fac9b73b5e5c43165b
SHA256 926a329dedbfa54478aae338e79e8c6861e345084173b2bd54d677ba73ce4342
SHA512 542781099dc56c2cc7c685e87c3962cd65405a5b2e3ec24655e26f9156b2fdbebfd8f550d959b08bfb044cfd49e8bfcff6b3ccef891257177a71dafe7750cba2

memory/3448-4-0x0000000000000000-mapping.dmp

memory/3448-6-0x00000000027B0000-0x00000000027B1000-memory.dmp

memory/3368-7-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe

MD5 96967658deb7d88da248e077dc383eca
SHA1 475c6525bf12dc043e8e20fac9b73b5e5c43165b
SHA256 926a329dedbfa54478aae338e79e8c6861e345084173b2bd54d677ba73ce4342
SHA512 542781099dc56c2cc7c685e87c3962cd65405a5b2e3ec24655e26f9156b2fdbebfd8f550d959b08bfb044cfd49e8bfcff6b3ccef891257177a71dafe7750cba2

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe

MD5 96967658deb7d88da248e077dc383eca
SHA1 475c6525bf12dc043e8e20fac9b73b5e5c43165b
SHA256 926a329dedbfa54478aae338e79e8c6861e345084173b2bd54d677ba73ce4342
SHA512 542781099dc56c2cc7c685e87c3962cd65405a5b2e3ec24655e26f9156b2fdbebfd8f550d959b08bfb044cfd49e8bfcff6b3ccef891257177a71dafe7750cba2

memory/1304-10-0x0000000000000000-mapping.dmp

memory/912-11-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.exe

MD5 96967658deb7d88da248e077dc383eca
SHA1 475c6525bf12dc043e8e20fac9b73b5e5c43165b
SHA256 926a329dedbfa54478aae338e79e8c6861e345084173b2bd54d677ba73ce4342
SHA512 542781099dc56c2cc7c685e87c3962cd65405a5b2e3ec24655e26f9156b2fdbebfd8f550d959b08bfb044cfd49e8bfcff6b3ccef891257177a71dafe7750cba2

memory/912-13-0x0000000002890000-0x0000000002891000-memory.dmp

memory/3368-14-0x00000000021A0000-0x00000000021D7000-memory.dmp

memory/3944-15-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Myznhos\ylwbbofx.dat

MD5 e85dd63a194072b239483cb66a1dc282
SHA1 0674552ee6251b4e653cbec22d4dcbaf37856996
SHA256 48a072fa25489564db3b4e6a311dd6c666884c060c794e8c7dcbefc2165deb65
SHA512 3c6cf78fafdeafad2e1ed00fef9680d47972e907742d1295a15026efd1ceda29872475683e18487ee603840f5a91cc9d9b3099866556e144d6c4c80d0735b958