b4d402b4ab3b5a5568f35562955d5d05357a589ccda55fde5a2c166ef5f15699

General

Target

0708_3355614568218.doc
Size

877KB
MD5

992338b40b38f1f55bd4a9599f70771c
SHA1

866086438592043aebb88f3da34ad437681a5cb0
SHA256

b4d402b4ab3b5a5568f35562955d5d05357a589ccda55fde5a2c166ef5f15699
SHA512

cd0482f15b709a61dcc3c0007486d5d2eaeb5bfc315cc2d82bd4f75dae68fed5fee8a0e90c61163723f34b0cdc6c459c186f14ef6b936bc5ed70e7b4d97da50a

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\MenuExt\E&xport to Microsoft Excel	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
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
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
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1092 WINWORD.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

1092 WINWORD.EXE
1092 WINWORD.EXE
1092 WINWORD.EXE
1092 WINWORD.EXE
1092 WINWORD.EXE
1092 WINWORD.EXE
1092 WINWORD.EXE

pid	process
1092	WINWORD.EXE

pid	process
1092	WINWORD.EXE
1092	WINWORD.EXE
1092	WINWORD.EXE
1092	WINWORD.EXE
1092	WINWORD.EXE
1092	WINWORD.EXE
1092	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1092 wrote to memory of 1980	1092	WINWORD.EXE	splwow64.exe
PID 1092 wrote to memory of 1980	1092	WINWORD.EXE	splwow64.exe
PID 1092 wrote to memory of 1980	1092	WINWORD.EXE	splwow64.exe
PID 1092 wrote to memory of 1980	1092	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\0708_3355614568218.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1092

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

Loading Replay Monitor...

Downloads

memory/1092-59-0x0000000072FC1000-0x0000000072FC4000-memory.dmp

Filesize
12KB

Download
memory/1092-60-0x0000000070A41000-0x0000000070A43000-memory.dmp

Filesize
8KB

Download
memory/1092-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1980-62-0x0000000000000000-mapping.dmp

Download
memory/1980-63-0x000007FEFC661000-0x000007FEFC663000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing