Malware Analysis Report

2025-05-05 21:34

Sample ID 201020-sr7t8lj9tx
Target doc_pack-601237926.xls
SHA256 56f33ce8f99097917d1407d2b90db3819bc6e2c79a7bea21790f76298571e0a6
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

56f33ce8f99097917d1407d2b90db3819bc6e2c79a7bea21790f76298571e0a6

Threat Level: Known bad

The file doc_pack-601237926.xls was found to be: Known bad.

Malicious Activity Summary

trojan banker stealer qakbot macro

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

Suspicious use of SetWindowsHookEx

Enumerates system info in registry

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2020-10-20 23:12

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 23:12

Reported

2020-10-20 23:23

Platform

win7

Max time kernel

97s

Max time network

73s

Command Line

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-601237926.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\Zmkao\yzzbax.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1080 wrote to memory of 1960 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1080 wrote to memory of 1960 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1080 wrote to memory of 1960 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1080 wrote to memory of 1960 N/A C:\Program Files\Microsoft Office\Office14\EXCEL.EXE C:\COsuv\Wegerb\szvMhegn.exe
PID 1960 wrote to memory of 1992 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1960 wrote to memory of 1992 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1960 wrote to memory of 1992 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1960 wrote to memory of 1992 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1960 wrote to memory of 1328 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1960 wrote to memory of 1328 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1960 wrote to memory of 1328 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1960 wrote to memory of 1328 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1960 wrote to memory of 1840 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1960 wrote to memory of 1840 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1960 wrote to memory of 1840 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1960 wrote to memory of 1840 N/A C:\COsuv\Wegerb\szvMhegn.exe C:\Windows\SysWOW64\schtasks.exe
PID 1328 wrote to memory of 980 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1328 wrote to memory of 980 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1328 wrote to memory of 980 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1328 wrote to memory of 980 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe
PID 1328 wrote to memory of 304 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Windows\SysWOW64\explorer.exe
PID 1328 wrote to memory of 304 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Windows\SysWOW64\explorer.exe
PID 1328 wrote to memory of 304 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Windows\SysWOW64\explorer.exe
PID 1328 wrote to memory of 304 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Windows\SysWOW64\explorer.exe
PID 1328 wrote to memory of 304 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe C:\Windows\SysWOW64\explorer.exe
PID 1144 wrote to memory of 1492 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1144 wrote to memory of 1492 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1144 wrote to memory of 1492 N/A C:\Windows\system32\taskeng.exe C:\COsuv\Wegerb\szvMhegn.exe
PID 1144 wrote to memory of 1492 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-601237926.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\Zmkao\yzzbax.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn hmjxjhugcs /tr "\"C:\COsuv\Wegerb\szvMhegn.exe\" /I hmjxjhugcs" /SC ONCE /Z /ST 23:19 /ET 23:31

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe /C

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\system32\taskeng.exe

taskeng.exe {20D963BB-C7B3-4F1F-8753-C04B6D51377F} S-1-5-18:NT AUTHORITY\System:Service:

C:\COsuv\Wegerb\szvMhegn.exe

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

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/1520-2-0x000007FEF7920000-0x000007FEF7B9A000-memory.dmp

memory/1960-3-0x0000000000000000-mapping.dmp

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1080-5-0x0000000007140000-0x0000000007144000-memory.dmp

memory/1080-6-0x0000000006140000-0x0000000006144000-memory.dmp

memory/1080-7-0x0000000002F10000-0x0000000002F11000-memory.dmp

memory/1080-11-0x0000000004F90000-0x0000000004F94000-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/1992-13-0x0000000000000000-mapping.dmp

memory/1992-15-0x0000000002520000-0x0000000002531000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1328-18-0x0000000000000000-mapping.dmp

\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1840-20-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/980-22-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/980-24-0x00000000024D0000-0x00000000024E1000-memory.dmp

memory/1328-25-0x0000000000450000-0x0000000000487000-memory.dmp

memory/304-26-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Zmkao\yzzbax.dat

MD5 aaff6705c313e91b836660de6f03bab9
SHA1 c131ad16f50c9176fc6548dc1b8b3279d4280eef
SHA256 3c52feb61f4d1d0249284654722d23fc855e20978af3fa7469ab404645d8469b
SHA512 985f80de8ad68debaf2c431ea3a9732eeb735e27a2d48fe65d74d528a6a19a90e6b171afd38d59a8b8a323792773a343d1b73b1cc6127d83b08f8fe005e046ef

C:\COsuv\Wegerb\szvMhegn.exe

MD5 cd1d9f1f22120d080cb52057a7d9fb96
SHA1 d428fda3e1be91a246628fca76f5d0fe8d53e04d
SHA256 76ca0f3d7cc3c4231e242c4a90ecfd5da244d4df64cfc3c95da1ce321e1c3852
SHA512 4613044a3671f11652c338bd1474826c3614152aa04c9118cb2bd643519679948a0eff22d4b33fe732144a24618174d729f099b4b964aa9d505b6a72552c533f

memory/1492-28-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-10-20 23:12

Reported

2020-10-20 23:23

Platform

win10v200722

Max time kernel

81s

Max time network

151s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\doc_pack-601237926.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 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-601237926.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 4680

C:\Windows\system32\dwwin.exe

C:\Windows\system32\dwwin.exe -x -s 4680

Network

N/A

Files

memory/2164-0-0x00007FFCD2F60000-0x00007FFCD3626000-memory.dmp

memory/2164-1-0x000002025B227000-0x000002025B22C000-memory.dmp

memory/2164-2-0x000002025B227000-0x000002025B22C000-memory.dmp

memory/988-3-0x0000000000000000-mapping.dmp

memory/2168-4-0x0000000000000000-mapping.dmp

memory/2168-5-0x000002C27F6E0000-0x000002C27F6E1000-memory.dmp

memory/2168-6-0x000002C201E40000-0x000002C201E41000-memory.dmp

memory/2168-7-0x000002C201E40000-0x000002C201E41000-memory.dmp

memory/2168-9-0x000002C202240000-0x000002C202241000-memory.dmp

memory/2168-11-0x000002C202240000-0x000002C202241000-memory.dmp

memory/2168-13-0x000002C202110000-0x000002C202111000-memory.dmp

memory/2168-15-0x000002C202110000-0x000002C202111000-memory.dmp

memory/2168-14-0x000002C202110000-0x000002C202111000-memory.dmp

memory/2168-16-0x000002C201D80000-0x000002C201D81000-memory.dmp