e6a3e8f8e0b0f8a5426d840198aa1236a5c3cd0cd0829bf7567c675d042900a1

General

Target

document-389092874.xls
Size

139KB
MD5

f5efb7098a2c331eec563f88c52d97a1
SHA1

e6750fe8da127696bc19e09fc00b523f0e68b990
SHA256

4de71ee0856cda216f8b2b5c1a5dd40bc6bc61514bb6938bd10dd91cf933494e
SHA512

83053cdd22e4b52c9dd3873c70938c4d997d4715c12011c821ddefd848b20374a6380ead40719720e355613f37a1f038135c0779145ecec0e24fec3c2379c19f

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://evz15lmlir03sygmyr.xyz/w.gif

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	700	912	rundll32.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
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

912 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

912 EXCEL.EXE
912 EXCEL.EXE
912 EXCEL.EXE

pid	process
912	EXCEL.EXE

pid	process
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 700	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 932	912	EXCEL.EXE	splwow64.exe
PID 912 wrote to memory of 932	912	EXCEL.EXE	splwow64.exe
PID 912 wrote to memory of 932	912	EXCEL.EXE	splwow64.exe
PID 912 wrote to memory of 932	912	EXCEL.EXE	splwow64.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\document-389092874.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:700

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:932

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/700-6-0x0000000000000000-mapping.dmp

Download
memory/700-7-0x0000000076381000-0x0000000076383000-memory.dmp

Filesize
8KB

Download
memory/912-2-0x000000002F751000-0x000000002F754000-memory.dmp

Filesize
12KB

Download
memory/912-3-0x0000000071771000-0x0000000071773000-memory.dmp

Filesize
8KB

Download
memory/912-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/932-8-0x0000000000000000-mapping.dmp

Download
memory/932-9-0x000007FEFC0A1000-0x000007FEFC0A3000-memory.dmp

Filesize
8KB

Download
memory/2040-5-0x000007FEF6580000-0x000007FEF67FA000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads