Malware Analysis Report

2025-05-05 21:39

Sample ID 201020-658rsre1ts
Target doc_pack-364033831.xls
SHA256 dc1e9ab5d55c1489a69db8607f2643eb871d5ea2781f8a9079a88396d0a5a345
Tags
trojan banker stealer qakbot macro
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

dc1e9ab5d55c1489a69db8607f2643eb871d5ea2781f8a9079a88396d0a5a345

Threat Level: Known bad

The file doc_pack-364033831.xls was found to be: Known bad.

Malicious Activity Summary

trojan banker stealer qakbot macro

Qakbot/Qbot

Suspicious Office macro

Office macro that triggers on suspicious action

Executes dropped EXE

Loads dropped DLL

Process spawned suspicious child process

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2020-10-20 22:22

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 22:22

Reported

2020-10-20 22:29

Platform

win7v200722

Max time kernel

118s

Max time network

25s

Command Line

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-364033831.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\Czsubbeqiiui\ewjendv.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 848 wrote to memory of 1968 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 848 wrote to memory of 1968 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 848 wrote to memory of 1968 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 848 wrote to memory of 1968 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1968 wrote to memory of 760 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1968 wrote to memory of 760 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1968 wrote to memory of 760 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1968 wrote to memory of 760 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1968 wrote to memory of 828 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 1968 wrote to memory of 828 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 1968 wrote to memory of 828 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 1968 wrote to memory of 828 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 1968 wrote to memory of 572 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1968 wrote to memory of 572 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1968 wrote to memory of 572 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1968 wrote to memory of 572 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 828 wrote to memory of 2000 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 828 wrote to memory of 2000 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 828 wrote to memory of 2000 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 828 wrote to memory of 2000 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
PID 828 wrote to memory of 604 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Windows\SysWOW64\explorer.exe
PID 828 wrote to memory of 604 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Windows\SysWOW64\explorer.exe
PID 828 wrote to memory of 604 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Windows\SysWOW64\explorer.exe
PID 828 wrote to memory of 604 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Windows\SysWOW64\explorer.exe
PID 828 wrote to memory of 604 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe C:\Windows\SysWOW64\explorer.exe
PID 2028 wrote to memory of 752 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2028 wrote to memory of 752 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2028 wrote to memory of 752 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2028 wrote to memory of 752 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-364033831.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\Czsubbeqiiui\ewjendv.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn cfirhynyej /tr "\"C:\COsuv\Wegerb\szvMhegn.exe\" /I cfirhynyej" /SC ONCE /Z /ST 00:25 /ET 00:37

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe /C

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\system32\taskeng.exe

taskeng.exe {583138B0-DAC9-454F-B1DF-F8BC78E051FD} S-1-5-18:NT AUTHORITY\System:Service:

C:\COsuv\Wegerb\szvMhegn.exe

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

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/1748-1-0x000007FEF6690000-0x000007FEF690A000-memory.dmp

memory/1968-2-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/848-4-0x0000000004670000-0x0000000004674000-memory.dmp

memory/848-5-0x0000000006440000-0x0000000006444000-memory.dmp

memory/848-8-0x0000000005280000-0x0000000005284000-memory.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/760-10-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/760-12-0x00000000025C0000-0x00000000025D1000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/828-15-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/572-17-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/2000-19-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\??\PIPE\wkssvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2000-22-0x0000000002490000-0x00000000024A1000-memory.dmp

memory/604-24-0x0000000000000000-mapping.dmp

memory/828-23-0x0000000000550000-0x0000000000587000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.dat

MD5 a63802d8b653db98f9cbbff9894c42a3
SHA1 d6e835c45232003fff6f5cca15fc0236c179f5fa
SHA256 fca824c3fb3a6e931ff3c01e593f342dc1f58a91f7e489fab8fafa836d3b2f7f
SHA512 f0a5d27ea8cedd6be30ac673da3d9222897fbacba25a0b4e4dee34abdd3d756e7f21575d7bff71a0c574f9088aa0ea3498e05facb8a76c3e004fa607a573d3f3

memory/752-26-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\??\PIPE\wkssvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Analysis: behavioral2

Detonation Overview

Submitted

2020-10-20 22:22

Reported

2020-10-20 22:29

Platform

win10v200722

Max time kernel

83s

Max time network

150s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-364033831.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 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

Enumerates system info in registry

Description Indicator Process Target
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
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS 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-364033831.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 4684

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4684

Network

N/A

Files

memory/3940-0-0x00007FFB56560000-0x00007FFB56C26000-memory.dmp

memory/3612-3-0x0000000000000000-mapping.dmp

memory/3568-4-0x0000000000000000-mapping.dmp

memory/3568-5-0x000001C669EB0000-0x000001C669EB1000-memory.dmp

memory/3568-6-0x000001C669EB0000-0x000001C669EB1000-memory.dmp

memory/3568-8-0x000001C66A5F0000-0x000001C66A5F1000-memory.dmp

memory/3568-11-0x000001C66A5F0000-0x000001C66A5F1000-memory.dmp

memory/3568-12-0x000001C66A920000-0x000001C66A921000-memory.dmp

memory/3568-13-0x000001C66A920000-0x000001C66A921000-memory.dmp

memory/3568-14-0x000001C66A920000-0x000001C66A921000-memory.dmp

memory/3568-15-0x000001C66A530000-0x000001C66A531000-memory.dmp