d68a1ed53bcc16ba9e7cff9326ff3f327038daddf071ec567f8d79dfed851352

General

Target

Register 2948 -69086.xlsm
Size

184KB
MD5

071084a63d40622cb858d6330af3ffd0
SHA1

a1fb4785f9ea2329153897e7833d35d67e11d6ac
SHA256

d68a1ed53bcc16ba9e7cff9326ff3f327038daddf071ec567f8d79dfed851352
SHA512

dad242f4cd254722f024bbdadf7fd53d1fa83500e02cd6657a57d44dc26477a80fa20ce983e898e476652c23551c6392136bcef40cc52c480526d2f61815da43

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://fourstars.cyou/1.php

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1912	1996	regsvr32.exe	EXCEL.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1996 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1996 EXCEL.EXE
1996 EXCEL.EXE
1996 EXCEL.EXE

pid	process
1996	EXCEL.EXE

pid	process
1996	EXCEL.EXE
1996	EXCEL.EXE
1996	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe
PID 1996 wrote to memory of 1912	1996	EXCEL.EXE	regsvr32.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Register 2948 -69086.xlsm"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 -silent ..\91919.dll
2⤵
- Process spawned unexpected child process
PID:1912

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1912-63-0x0000000000000000-mapping.dmp

Download
memory/1912-64-0x0000000075D41000-0x0000000075D43000-memory.dmp

Filesize
8KB

Download
memory/1996-60-0x000000002FF91000-0x000000002FF94000-memory.dmp

Filesize
12KB

Download
memory/1996-61-0x0000000070F91000-0x0000000070F93000-memory.dmp

Filesize
8KB

Download
memory/1996-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads