a544b4050677d9e5ad964398954cf7d74c96b65a1126a8bb3491fbe52ff0ec10

Analysis

max time kernel
101s
max time network
53s
platform
windows7_x64
resource
win7v20210410
submitted
27-07-2021 09:08

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General

Target

27-07-2021/27-07-2021/FL_6110_32_75_21.docx
Size

23KB
MD5

182a5a29ec72c7c85f8e591f3018f84c
SHA1

bb1a1880958dfc7bd6b158244f8c70f9e4519c89
SHA256

d8b0149aca86d6e42663afdca70f90c3cbe9c9ab92a2f3dce4c511023da16b58
SHA512

ef01108b087508448ec47c6de75fedfe3db5504ce6b920a613b5665a56d981eb6eabb88a40e61203a11cf29965a1eb8468025a1e91b07876217ae882d6da7e0c

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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	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
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
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\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1752 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1752 WINWORD.EXE
1752 WINWORD.EXE

pid	process
1752	WINWORD.EXE

pid	process
1752	WINWORD.EXE
1752	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1752 wrote to memory of 640	1752	WINWORD.EXE	splwow64.exe
PID 1752 wrote to memory of 640	1752	WINWORD.EXE	splwow64.exe
PID 1752 wrote to memory of 640	1752	WINWORD.EXE	splwow64.exe
PID 1752 wrote to memory of 640	1752	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\27-07-2021\27-07-2021\FL_6110_32_75_21.docx"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:640

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/640-63-0x0000000000000000-mapping.dmp

Download
memory/640-64-0x000007FEFB9A1000-0x000007FEFB9A3000-memory.dmp

Filesize
8KB

Download
memory/1752-59-0x00000000724A1000-0x00000000724A4000-memory.dmp

Filesize
12KB

Download
memory/1752-60-0x000000006FF21000-0x000000006FF23000-memory.dmp

Filesize
8KB

Download
memory/1752-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1752-62-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/1752-65-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download