1223897eca4325cd7291ec4bd0ff77d8e8e13cd82347a037153b9acc052e1465

Analysis

max time kernel
144s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
17-08-2022 15:35

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General

Target

Tax Documents.doc
Size

4.9MB
MD5

fea98f3eb09ddfc5686d45c91ed887fd
SHA1

9abf062130a086e1809fdaac26ac33dcd00e7f5e
SHA256

1223897eca4325cd7291ec4bd0ff77d8e8e13cd82347a037153b9acc052e1465
SHA512

3499e81f2cf90f95bc82a8db4b26ecdcb23886c7f579e48eb76618847c28e4e83c23ebc34b4a3671c81519f7f98348e92a1a7880eb0e5e05a4d35842db929cbc

Score

1^/10

Malware Config

Signatures

Office loads VBA resources, possible macro or embedded object present

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1724 WINWORD.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WINWORD.EXE

pid process

1724 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1724 WINWORD.EXE
1724 WINWORD.EXE

pid	process
1724	WINWORD.EXE

pid	process
1724	WINWORD.EXE

pid	process
1724	WINWORD.EXE
1724	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1724 wrote to memory of 596	1724	WINWORD.EXE	splwow64.exe
PID 1724 wrote to memory of 596	1724	WINWORD.EXE	splwow64.exe
PID 1724 wrote to memory of 596	1724	WINWORD.EXE	splwow64.exe
PID 1724 wrote to memory of 596	1724	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\Tax Documents.doc"
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:596

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/596-60-0x0000000000000000-mapping.dmp

Download
memory/596-61-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp

Filesize
8KB

Download
memory/1724-54-0x0000000072651000-0x0000000072654000-memory.dmp

Filesize
12KB

Download
memory/1724-55-0x00000000700D1000-0x00000000700D3000-memory.dmp

Filesize
8KB

Download
memory/1724-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1724-57-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1724-58-0x00000000710BD000-0x00000000710C8000-memory.dmp

Filesize
44KB

Download
memory/1724-59-0x00000000710BD000-0x00000000710C8000-memory.dmp

Filesize
44KB

Download