Malware Analysis Report

2025-06-16 05:24

Sample ID 210303-pb5frvz6as
Target 0303_15995446253021.doc
SHA256 8770f445c501edf62c9bdf28143e6da5b55d493cac5797b6ecdd81775f76e0da
Tags
hancitor 0303_trew30 downloader
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

8770f445c501edf62c9bdf28143e6da5b55d493cac5797b6ecdd81775f76e0da

Threat Level: Known bad

The file 0303_15995446253021.doc was found to be: Known bad.

Malicious Activity Summary

hancitor 0303_trew30 downloader

Process spawned unexpected child process

Hancitor

Blocklisted process makes network request

Loads dropped DLL

Looks up external IP address via web service

Suspicious use of SetThreadContext

Drops file in Windows directory

Office loads VBA resources, possible macro or embedded object present

Suspicious behavior: AddClipboardFormatListener

NTFS ADS

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Office document contains embedded OLE objects

Suspicious use of SetWindowsHookEx

Modifies Internet Explorer settings

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-03-03 16:13

Signatures

Office document contains embedded OLE objects

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

Analysis: behavioral1

Detonation Overview

Submitted

2021-03-03 16:13

Reported

2021-03-03 16:16

Platform

win7v20201028

Max time kernel

150s

Max time network

151s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0303_15995446253021.doc"

Signatures

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process N/A C:\Windows\SysWOW64\rundll32.exe C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\Debug\WIA\wiatrace.log C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A

Office loads VBA resources, possible macro or embedded object present

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE N/A

Processes

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE

"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0303_15995446253021.doc"

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,WIOYJIOLYGA

Network

N/A

Files

memory/1968-3-0x000000006FDB1000-0x000000006FDB3000-memory.dmp

memory/1968-2-0x0000000072331000-0x0000000072334000-memory.dmp

memory/1968-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1944-5-0x0000000000000000-mapping.dmp

memory/1944-6-0x000007FEFB831000-0x000007FEFB833000-memory.dmp

memory/1732-7-0x0000000000000000-mapping.dmp

memory/1732-8-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-03-03 16:13

Reported

2021-03-03 16:16

Platform

win10v20201028

Max time kernel

139s

Max time network

146s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0303_15995446253021.doc" /o ""

Signatures

Hancitor

downloader hancitor

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process N/A C:\Windows\System32\rundll32.exe C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1944 set thread context of 1324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\svchost.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\WINWORD.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A

NTFS ADS

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Local\Temp\{87EA52E2-E9C2-4F9A-94D2-CA1CBF961DFF}\msals.pumpl:Zone.Identifier C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE

"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0303_15995446253021.doc" /o ""

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,WIOYJIOLYGA

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,WIOYJIOLYGA

C:\Windows\SysWOW64\svchost.exe

C:\Windows\System32\svchost.exe

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 api.ipify.org udp
N/A 54.235.189.250:80 api.ipify.org tcp
N/A 8.8.8.8:53 mainctional.com udp
N/A 8.8.8.8:53 disrulaytin.ru udp
N/A 185.183.96.157:80 disrulaytin.ru tcp
N/A 8.8.8.8:53 nvgeeforsegt.ru udp
N/A 47.254.131.254:80 nvgeeforsegt.ru tcp
N/A 54.235.189.250:80 api.ipify.org tcp
N/A 8.8.8.8:53 sweyblidian.com udp
N/A 185.100.65.29:80 sweyblidian.com tcp
N/A 185.100.65.29:80 sweyblidian.com tcp
N/A 185.100.65.29:80 sweyblidian.com tcp

Files

memory/652-2-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

memory/652-3-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

memory/652-4-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

memory/652-5-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

memory/652-6-0x00007FFC2FF20000-0x00007FFC30557000-memory.dmp

memory/652-7-0x00007FFC0D150000-0x00007FFC0D160000-memory.dmp

memory/2568-8-0x0000000000000000-mapping.dmp

memory/2568-9-0x00000000022B0000-0x00000000023B1000-memory.dmp

memory/3036-10-0x0000000000000000-mapping.dmp

\??\c:\users\admin\appdata\local\temp\Static.dll

MD5 541f0ae61eaa22bc5eeca8351f9e76e3
SHA1 9c52ae468d81fceaf09c8f1fc166a6b6ffdc9225
SHA256 492ed4c57dbe80c20cc0749ff91da5d9f2b3c5b95ae24ac8822b242cb51f9d5a
SHA512 7bf98a7a1530e3f407c0b4fb0d4c4fb6cc8d3e6b462bc0bd99f5daf1568041dbe1d5c0acf4422c62f05bb4070e33446f0195f5154da1566899eb9dbc8af47f5e

memory/1944-12-0x0000000000000000-mapping.dmp

\Users\Admin\AppData\Local\Temp\Static.dll

MD5 541f0ae61eaa22bc5eeca8351f9e76e3
SHA1 9c52ae468d81fceaf09c8f1fc166a6b6ffdc9225
SHA256 492ed4c57dbe80c20cc0749ff91da5d9f2b3c5b95ae24ac8822b242cb51f9d5a
SHA512 7bf98a7a1530e3f407c0b4fb0d4c4fb6cc8d3e6b462bc0bd99f5daf1568041dbe1d5c0acf4422c62f05bb4070e33446f0195f5154da1566899eb9dbc8af47f5e

memory/1944-14-0x0000000074210000-0x000000007421A000-memory.dmp

memory/1944-15-0x00000000026F0000-0x00000000026F1000-memory.dmp

memory/1324-16-0x0000000000400000-0x0000000000448000-memory.dmp

memory/1324-17-0x0000000000401480-mapping.dmp

memory/1324-18-0x0000000000400000-0x0000000000448000-memory.dmp