a6bd19943dd9083e7a2f67c9302c32cbc5640d245d84176c43e9369cd6c34a11

General

Target

file.doc
Size

1.3MB
MD5

df1322214337bed7cc898bdca5002e8b
SHA1

dac91c99f1bb2b62ccd39e53ca6b2368efdb6c16
SHA256

a6bd19943dd9083e7a2f67c9302c32cbc5640d245d84176c43e9369cd6c34a11
SHA512

bb2814b3a11e24e245f58ddc9401473c98fb0f8168b792f37844e2a22e6faf7fed789088f53437c82e9ebbb35b55ceaec090e5fef8544a0617e059dc411b4e50

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

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

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

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1932 WINWORD.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

1932 WINWORD.EXE
1932 WINWORD.EXE
1932 WINWORD.EXE
1932 WINWORD.EXE
1932 WINWORD.EXE
1932 WINWORD.EXE
1932 WINWORD.EXE

pid	process
1932	WINWORD.EXE

pid	process
1932	WINWORD.EXE
1932	WINWORD.EXE
1932	WINWORD.EXE
1932	WINWORD.EXE
1932	WINWORD.EXE
1932	WINWORD.EXE
1932	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1932 wrote to memory of 1980	1932	WINWORD.EXE	splwow64.exe
PID 1932 wrote to memory of 1980	1932	WINWORD.EXE	splwow64.exe
PID 1932 wrote to memory of 1980	1932	WINWORD.EXE	splwow64.exe
PID 1932 wrote to memory of 1980	1932	WINWORD.EXE	splwow64.exe

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\file.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1980

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1932-60-0x00000000727E1000-0x00000000727E4000-memory.dmp

Filesize
12KB

Download
memory/1932-61-0x0000000070261000-0x0000000070263000-memory.dmp

Filesize
8KB

Download
memory/1932-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1980-63-0x0000000000000000-mapping.dmp

Download
memory/1980-64-0x000007FEFBC31000-0x000007FEFBC33000-memory.dmp

Filesize
8KB

Download

Analysis

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