Malware Analysis Report

2025-05-05 21:40

Sample ID 201020-qrdxm7xx9e
Target doc_pack-368437814.xls
SHA256 369759ff19e5642af27a0aafebb23847fef54ab4211bf3cfb6f02dab83a1e302
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

369759ff19e5642af27a0aafebb23847fef54ab4211bf3cfb6f02dab83a1e302

Threat Level: Known bad

The file doc_pack-368437814.xls was found to be: Known bad.

Malicious Activity Summary

macro trojan banker stealer qakbot

Qakbot/Qbot

Office macro that triggers on suspicious action

Suspicious Office macro

Executes dropped EXE

Loads dropped DLL

Process spawned suspicious child process

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetWindowsHookEx

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: MapViewOfSection

Checks processor information in registry

Enumerates system info in registry

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

win7

Max time kernel

135s

Max time network

20s

Command Line

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-368437814.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\Nuammtoyd\yndcau.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1544 wrote to memory of 2004 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1544 wrote to memory of 2004 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1544 wrote to memory of 2004 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1544 wrote to memory of 2004 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 2004 wrote to memory of 592 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2004 wrote to memory of 592 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2004 wrote to memory of 592 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2004 wrote to memory of 592 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 2004 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 2004 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 2004 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 2004 wrote to memory of 1084 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 2004 wrote to memory of 1464 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1464 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1464 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1464 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1084 wrote to memory of 620 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 1084 wrote to memory of 620 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 1084 wrote to memory of 620 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 1084 wrote to memory of 620 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe
PID 1084 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Windows\SysWOW64\explorer.exe
PID 1084 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe C:\Windows\SysWOW64\explorer.exe
PID 1144 wrote to memory of 1764 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1144 wrote to memory of 1764 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1144 wrote to memory of 1764 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1144 wrote to memory of 1764 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-368437814.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\Nuammtoyd\yndcau.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wdvbfcfayo /tr "\"C:\COsuv\Wegerb\szvMhegn.exe\" /I wdvbfcfayo" /SC ONCE /Z /ST 22:33 /ET 22:45

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe /C

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\system32\taskeng.exe

taskeng.exe {422ABE3E-257B-4FF3-BDA5-6C66475BD5B4} S-1-5-18:NT AUTHORITY\System:Service:

C:\COsuv\Wegerb\szvMhegn.exe

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

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/1884-2-0x000007FEF7830000-0x000007FEF7AAA000-memory.dmp

memory/2004-3-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1544-5-0x0000000007040000-0x0000000007044000-memory.dmp

memory/1544-6-0x0000000006040000-0x0000000006044000-memory.dmp

memory/1544-7-0x0000000002510000-0x0000000002511000-memory.dmp

memory/1544-11-0x0000000004F00000-0x0000000004F04000-memory.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/592-13-0x0000000000000000-mapping.dmp

memory/592-15-0x0000000002530000-0x0000000002541000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1084-18-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1464-20-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/620-22-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

\??\PIPE\wkssvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/620-25-0x0000000002410000-0x0000000002421000-memory.dmp

memory/1084-26-0x0000000000450000-0x0000000000487000-memory.dmp

memory/1324-27-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Nuammtoyd\yndcau.dat

MD5 e3520b86f0adbb9ac78fe03fee47eae3
SHA1 4f5fc8dd23a68e28d84a9f124a65f3e0d4154660
SHA256 964a0885cc757362b50b8e6353013f3878c917f60a28b3193917cf1e10c9ab6b
SHA512 3db7fd65612da4631232fa0a1ce58a0e381f51cc32519189c734ac8cde0f15dbc7a19c381de6b6d534c38b236bee75f9035b474b7a43cfe72c3c5c5690535b6e

memory/1764-29-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

Analysis: behavioral2

Detonation Overview

Submitted

2020-10-20 22:22

Reported

2020-10-20 22:29

Platform

win10

Max time kernel

10s

Max time network

135s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-368437814.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-368437814.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 4416

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4416

Network

N/A

Files

memory/3104-0-0x00007FF88C3D0000-0x00007FF88CA96000-memory.dmp

memory/2140-3-0x0000000000000000-mapping.dmp

memory/2164-4-0x0000000000000000-mapping.dmp

memory/2164-5-0x00000258DF2D0000-0x00000258DF2D1000-memory.dmp

memory/2164-6-0x00000258DF2D0000-0x00000258DF2D1000-memory.dmp

memory/2164-8-0x00000258DF960000-0x00000258DF961000-memory.dmp

memory/2164-11-0x00000258DFD60000-0x00000258DFD61000-memory.dmp

memory/2164-13-0x00000258DFD60000-0x00000258DFD61000-memory.dmp

memory/2164-15-0x00000258DFD60000-0x00000258DFD61000-memory.dmp

memory/2164-17-0x00000258DFCD0000-0x00000258DFCD1000-memory.dmp

memory/2164-18-0x00000258DFCD0000-0x00000258DFCD1000-memory.dmp

memory/2164-19-0x00000258DFCD0000-0x00000258DFCD1000-memory.dmp