667f88e8dcd4a15529ed02bb20da6ae2e5b195717eb630b20b9732c8573c4e83

Resubmissions

29/04/2021, 12:55

210429-emzncd6tb210

29/04/2021, 10:36

210429-wz9qmbhkzx8

11/09/2020, 19:36

200911-2a3b77fnj68

Analysis

max time kernel
135s
max time network
136s
platform
windows7_x64
resource
win7v20210410
submitted
29/04/2021, 12:55

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General

Target
6dbdd1efcab25eaaec2217e9bcbf0718.doc
Size 234KB
Sample210429-emzncd6tb2
SHA256 667f88e8dcd4a15529ed02bb20da6ae2e5b195717eb630b20b9732c8573c4e83
MD5 6dbdd1efcab25eaaec2217e9bcbf0718
SHA1 8d4782e50282a81c38aed151882647c0ebb3269d
SHA512 478611a8b742f5c7c4f60633ed08854d3fd7e5fd179fb9f6701165341a81cee1b5ff50336052ceab4690c69ce1d0c3d7b1ab4e8fceba9cab51c84c8d5df8915f
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1584	988	Certutil.exe	33
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2012	988	Rundll32.exe	33

Loads dropped DLL 1 IoCs

pid	Process
1268	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Office loads VBA resources, possible macro or embedded object present

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1096	WINWORD.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1096	WINWORD.EXE
1096	WINWORD.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 1100	1096	WINWORD.EXE	26
PID 1096 wrote to memory of 1100	1096	WINWORD.EXE	26
PID 1096 wrote to memory of 1100	1096	WINWORD.EXE	26
PID 1096 wrote to memory of 1100	1096	WINWORD.EXE	26
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37
PID 2012 wrote to memory of 1268	2012	Rundll32.exe	37

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\6dbdd1efcab25eaaec2217e9bcbf0718.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1100

C:\Windows\system32\Certutil.exe
Certutil -decode C:\Users\Public\Ksh1.xls C:\Users\Public\Ksh1.pdf
1⤵
- Process spawned unexpected child process
PID:1584

C:\Windows\system32\Rundll32.exe
Rundll32 C:\Users\Public\Ksh1.pdf,In
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\rundll32.exe
  Rundll32 C:\Users\Public\Ksh1.pdf,In
  2⤵
  - Loads dropped DLL
  PID:1268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1096-60-0x00000000721B1000-0x00000000721B4000-memory.dmp

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memory/1096-61-0x000000006FC31000-0x000000006FC33000-memory.dmp

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memory/1096-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

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memory/1096-71-0x000000005FFF0000-0x0000000060000000-memory.dmp

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memory/1100-64-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

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memory/1268-69-0x0000000075281000-0x0000000075283000-memory.dmp

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memory/1584-65-0x00000000FF271000-0x00000000FF273000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads