Malware Analysis Report

2025-05-05 21:39

Sample ID 201020-3hr3lknv2j
Target doc_pack-423193066.xls
SHA256 c5f90f858a4b71575c3fd43bf1d142fd2a6343240240a621c3a13b013d997e23
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

c5f90f858a4b71575c3fd43bf1d142fd2a6343240240a621c3a13b013d997e23

Threat Level: Known bad

The file doc_pack-423193066.xls was found to be: Known bad.

Malicious Activity Summary

macro trojan banker stealer qakbot

Qakbot/Qbot

Office macro that triggers on suspicious action

Executes dropped EXE

Suspicious Office macro

Loads dropped DLL

Process spawned suspicious child process

Office loads VBA resources, possible macro or embedded object present

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2020-10-20 22:28

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 22:28

Reported

2020-10-20 22:39

Platform

win7v200722

Max time kernel

136s

Max time network

32s

Command Line

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-423193066.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\Ryfwcnwo\ihcsmekm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1436 wrote to memory of 2000 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1436 wrote to memory of 2000 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1436 wrote to memory of 2000 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1436 wrote to memory of 2000 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 2000 wrote to memory of 1292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2000 wrote to memory of 1292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2000 wrote to memory of 1292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2000 wrote to memory of 1292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2000 wrote to memory of 292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 2000 wrote to memory of 292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 2000 wrote to memory of 292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 2000 wrote to memory of 292 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 2000 wrote to memory of 740 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2000 wrote to memory of 740 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2000 wrote to memory of 740 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2000 wrote to memory of 740 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 292 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 292 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 292 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 292 wrote to memory of 912 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe
PID 292 wrote to memory of 1640 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Windows\SysWOW64\explorer.exe
PID 292 wrote to memory of 1640 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Windows\SysWOW64\explorer.exe
PID 292 wrote to memory of 1640 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Windows\SysWOW64\explorer.exe
PID 292 wrote to memory of 1640 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Windows\SysWOW64\explorer.exe
PID 292 wrote to memory of 1640 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe C:\Windows\SysWOW64\explorer.exe
PID 932 wrote to memory of 1224 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 932 wrote to memory of 1224 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 932 wrote to memory of 1224 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 932 wrote to memory of 1224 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-423193066.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\Ryfwcnwo\ihcsmekm.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn achvhzhsdg /tr "\"C:\COsuv\Wegerb\szvMhegn.exe\" /I achvhzhsdg" /SC ONCE /Z /ST 00:43 /ET 00:55

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe /C

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\system32\taskeng.exe

taskeng.exe {FE982D5B-3142-4083-9007-3992CE5A6722} S-1-5-18:NT AUTHORITY\System:Service:

C:\COsuv\Wegerb\szvMhegn.exe

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

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/1832-2-0x000007FEF8540000-0x000007FEF87BA000-memory.dmp

memory/2000-3-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1436-5-0x0000000006FE0000-0x0000000006FE4000-memory.dmp

memory/1436-6-0x0000000005FE0000-0x0000000005FE4000-memory.dmp

memory/1436-9-0x0000000004C30000-0x0000000004C34000-memory.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1292-11-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1292-13-0x00000000024F0000-0x0000000002501000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/292-16-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/740-18-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/912-20-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/912-22-0x0000000002520000-0x0000000002531000-memory.dmp

memory/292-23-0x0000000000450000-0x0000000000487000-memory.dmp

memory/1640-24-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Ryfwcnwo\ihcsmekm.dat

MD5 d81763c225e98cc36ed9d9eff746ea06
SHA1 ac8b019928acec764d3a008993f79f25e5b8907f
SHA256 a4108e9385e8e26f46b0116d7a4a4a0fb772d4b270815e844732f8456ec9a3e8
SHA512 e75b98768ce043af7678876520cfec3b8c491862dd2e2536069194354fa557e26401b7db81ca026c6a89ddc256f0862fd5a9d710adc13938f6029a1791530c97

memory/1224-26-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

Analysis: behavioral2

Detonation Overview

Submitted

2020-10-20 22:28

Reported

2020-10-20 22:39

Platform

win10v200722

Max time kernel

86s

Max time network

154s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-423193066.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-423193066.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 4700

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4700

Network

N/A

Files

memory/2584-0-0x00007FF9F41F0000-0x00007FF9F48B6000-memory.dmp

memory/2584-1-0x000001698F46B000-0x000001698F46E000-memory.dmp

memory/2584-2-0x000001698F46E000-0x000001698F473000-memory.dmp

memory/332-3-0x0000000000000000-mapping.dmp

memory/4048-4-0x0000000000000000-mapping.dmp

memory/4048-5-0x00000260CFFA0000-0x00000260CFFA1000-memory.dmp

memory/4048-6-0x00000260CFFA0000-0x00000260CFFA1000-memory.dmp

memory/4048-8-0x00000260D06E0000-0x00000260D06E1000-memory.dmp

memory/4048-11-0x00000260D0A30000-0x00000260D0A31000-memory.dmp

memory/4048-12-0x00000260D0A30000-0x00000260D0A31000-memory.dmp

memory/4048-13-0x00000260D0A30000-0x00000260D0A31000-memory.dmp

memory/4048-14-0x00000260D0620000-0x00000260D0621000-memory.dmp