187441262398983e2bf4672e06325e247537e083f9dcf384762858307cc5c8df

Resubmissions

04-12-2020 23:26

201204-em2p576lje 4

04-12-2020 23:21

201204-djhepqlp7s 7

04-12-2020 23:16

201204-np79pl4zy2 7

Analysis

max time kernel
93s
max time network
93s
platform
windows7_x64
resource
win7v20201028
submitted
04-12-2020 23:26

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General

Target

view page source hybrid.rtf
Size

46KB
MD5

4dfa2438ea66e13ccd84afca3c410be4
SHA1

9e131830c70fe743b0625637fa407cad525811f5
SHA256

187441262398983e2bf4672e06325e247537e083f9dcf384762858307cc5c8df
SHA512

218ce0bdbf2011864ea3d7b6b733ceadb8c4f93c180fca371c0fb79b8514843dff30c54b483d17e5b9c3743f347e5761ee3fae3d1c8a0d1e5b18cc76fcff277c

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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
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"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
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"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
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"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1408 WINWORD.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

WINWORD.EXE

pid process

1408 WINWORD.EXE
1408 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1408 WINWORD.EXE
1408 WINWORD.EXE

pid	process
1408	WINWORD.EXE

pid	process
1408	WINWORD.EXE
1408	WINWORD.EXE

pid	process
1408	WINWORD.EXE
1408	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1408 wrote to memory of 1976	1408	WINWORD.EXE	splwow64.exe
PID 1408 wrote to memory of 1976	1408	WINWORD.EXE	splwow64.exe
PID 1408 wrote to memory of 1976	1408	WINWORD.EXE	splwow64.exe
PID 1408 wrote to memory of 1976	1408	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\view page source hybrid.rtf"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1408

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1976

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
1⤵
PID:1624

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1976-2-0x0000000000000000-mapping.dmp

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