a544b4050677d9e5ad964398954cf7d74c96b65a1126a8bb3491fbe52ff0ec10

Analysis

max time kernel
101s
max time network
44s
platform
windows7_x64
resource
win7v20210410
submitted
27-07-2021 09:08

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General

Target

27-07-2021/27-07-2021/IMG_1026001780541.docx
Size

18KB
MD5

7dfffb928a11a1609d6e211a4a185291
SHA1

20fd0c988d8507b2590cb3959d1d1a8c0d91b33f
SHA256

bfb18865baa2b888ffdb2ac40383f02e15eb1fc3f0af58a3af6910cf3bbf6be5
SHA512

0e455e70dc07a7a2521417d5a2f2fa047fbcef3a0260a17ed66f505d61e9a4eeb3e4e2ffeedf1e53a2fed65def123cb6ae5affb5a3e5329fc6b29247ac41c3fa

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 (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\MenuExt\Se&nd to OneNote	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
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
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
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

1076 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1076 WINWORD.EXE
1076 WINWORD.EXE

pid	process
1076	WINWORD.EXE

pid	process
1076	WINWORD.EXE
1076	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1076 wrote to memory of 568	1076	WINWORD.EXE	splwow64.exe
PID 1076 wrote to memory of 568	1076	WINWORD.EXE	splwow64.exe
PID 1076 wrote to memory of 568	1076	WINWORD.EXE	splwow64.exe
PID 1076 wrote to memory of 568	1076	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\IMG_1026001780541.docx"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:568

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/568-64-0x0000000000000000-mapping.dmp

Download
memory/568-65-0x000007FEFC661000-0x000007FEFC663000-memory.dmp

Filesize
8KB

Download
memory/1076-60-0x0000000072FC1000-0x0000000072FC4000-memory.dmp

Filesize
12KB

Download
memory/1076-61-0x0000000070A41000-0x0000000070A43000-memory.dmp

Filesize
8KB

Download
memory/1076-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1076-63-0x0000000075A31000-0x0000000075A33000-memory.dmp

Filesize
8KB

Download
memory/1076-66-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download