Malware Analysis Report

2025-05-05 21:39

Sample ID 201020-74fzq76a5e
Target doc_pack-345057170.xls
SHA256 8a90e7c86390b108ac72220703ff2c3a3935741ffd1f01fc4cba85b8c8b4c9eb
Tags
macro trojan banker stealer qakbot
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

8a90e7c86390b108ac72220703ff2c3a3935741ffd1f01fc4cba85b8c8b4c9eb

Threat Level: Known bad

The file doc_pack-345057170.xls was found to be: Known bad.

Malicious Activity Summary

macro trojan banker stealer qakbot

Qakbot/Qbot

Suspicious Office macro

Executes dropped EXE

Office macro that triggers on suspicious action

Loads dropped DLL

Process spawned suspicious child process

Office loads VBA resources, possible macro or embedded object present

Checks processor information in registry

Creates scheduled task(s)

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Enumerates system info in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2020-10-20 22:23

Signatures

Office macro that triggers on suspicious action

macro
Description Indicator Process Target
N/A N/A N/A N/A

Suspicious Office macro

macro
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2020-10-20 22:23

Reported

2020-10-20 22:32

Platform

win7

Max time kernel

112s

Max time network

47s

Command Line

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-345057170.xls

Signatures

Qakbot/Qbot

trojan banker stealer qakbot

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\COsuv\Wegerb\szvMhegn.exe N/A
N/A N/A C:\COsuv\Wegerb\szvMhegn.exe N/A

Office loads VBA resources, possible macro or embedded object present

Creates scheduled task(s)

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

Suspicious behavior: AddClipboardFormatListener

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

Suspicious behavior: MapViewOfSection

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1460 wrote to memory of 2020 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1460 wrote to memory of 2020 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1460 wrote to memory of 2020 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1460 wrote to memory of 2020 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 2020 wrote to memory of 1180 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2020 wrote to memory of 1180 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2020 wrote to memory of 1180 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2020 wrote to memory of 1180 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2020 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 2020 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 2020 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 2020 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 2020 wrote to memory of 436 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2020 wrote to memory of 436 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2020 wrote to memory of 436 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2020 wrote to memory of 436 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1084 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 1084 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 1084 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 1084 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe
PID 1084 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe C:\Windows\SysWOW64\explorer.exe
PID 832 wrote to memory of 1480 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 832 wrote to memory of 1480 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 832 wrote to memory of 1480 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 832 wrote to memory of 1480 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe

Processes

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-345057170.xls

C:\COsuv\Wegerb\szvMhegn.exe

"C:\COsuv\Wegerb\szvMhegn.exe"

C:\COsuv\Wegerb\szvMhegn.exe

C:\COsuv\Wegerb\szvMhegn.exe /C

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn cfvhsph /tr "\"C:\COsuv\Wegerb\szvMhegn.exe\" /I cfvhsph" /SC ONCE /Z /ST 22:35 /ET 22:47

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe /C

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\system32\taskeng.exe

taskeng.exe {1186835B-F3E3-4ECB-8856-38FF5F0A23D2} S-1-5-18:NT AUTHORITY\System:Service:

C:\COsuv\Wegerb\szvMhegn.exe

C:\COsuv\Wegerb\szvMhegn.exe /I cfvhsph

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 blog.vokasidev.com udp
N/A 68.65.123.245:80 blog.vokasidev.com tcp

Files

memory/1404-1-0x000007FEF6440000-0x000007FEF66BA000-memory.dmp

memory/2020-2-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1460-4-0x0000000006EB0000-0x0000000006EB4000-memory.dmp

memory/1460-5-0x0000000005EB0000-0x0000000005EB4000-memory.dmp

memory/1460-8-0x0000000004CC0000-0x0000000004CC4000-memory.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1180-10-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1180-12-0x00000000024D0000-0x00000000024E1000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1084-15-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/436-17-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1696-19-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1696-21-0x0000000002420000-0x0000000002431000-memory.dmp

memory/1084-22-0x00000000004B0000-0x00000000004E7000-memory.dmp

memory/592-23-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ykyypklf\meyunzo.dat

MD5 2f09b3e353e67f7b55470c0df59148a0
SHA1 d6c2ad11c57f56038dd6329e311338ff2e2da213
SHA256 0ca861caf0abd2669ce3dedb18e7f356a2f108e229950909483860509dcf75ff
SHA512 411440a8975e7dc788a13bb555af6a8dde6eac68d9dc56e9176e9ce80ce2cfa27a479f5fc8192a21bcd87a982162da7f0d5c8ba93121ad2769228c163f2af4bb

memory/1480-25-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

Analysis: behavioral2

Detonation Overview

Submitted

2020-10-20 22:23

Reported

2020-10-20 22:32

Platform

win10v200722

Max time kernel

75s

Max time network

151s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-345057170.xls"

Signatures

Process spawned suspicious child process

Description Indicator Process Target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Checks processor information in registry

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

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: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
N/A N/A C:\Windows\system32\dwwin.exe N/A
N/A N/A C:\Windows\system32\dwwin.exe N/A

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-345057170.xls"

C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE

"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4524

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4524

Network

N/A

Files

memory/784-0-0x00007FFE42C50000-0x00007FFE43316000-memory.dmp

memory/784-2-0x0000017ED06C5000-0x0000017ED06CA000-memory.dmp

memory/3284-4-0x0000000000000000-mapping.dmp

memory/2656-5-0x0000000000000000-mapping.dmp

memory/2656-6-0x000001DF367C0000-0x000001DF367C1000-memory.dmp

memory/2656-7-0x000001DF367C0000-0x000001DF367C1000-memory.dmp

memory/2656-9-0x000001DF36E00000-0x000001DF36E01000-memory.dmp

memory/2656-12-0x000001DF37130000-0x000001DF37131000-memory.dmp

memory/2656-13-0x000001DF37130000-0x000001DF37131000-memory.dmp

memory/2656-14-0x000001DF37130000-0x000001DF37131000-memory.dmp

memory/2656-15-0x000001DF36D40000-0x000001DF36D41000-memory.dmp