24c6558f2fb6d51f674db36a608073276fb6d7ae856a6d5d096d4a1dafb9ef1d

General

Target

document-329225670.xls
Size

138KB
MD5

8ca40e8ffb40bbb82e77b32f513275d8
SHA1

cbba0b1b68e56e99036b8fca41d7c2e78ed87cd2
SHA256

24c6558f2fb6d51f674db36a608073276fb6d7ae856a6d5d096d4a1dafb9ef1d
SHA512

fb653ed5b06bf8a3ca0acef4b3a192da2a360b9dc5cd0a80503edbd87d73b70e80f2979210455b771c196ff9465ccd246042c985e5c8aea0dd3828d80c564172

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://nvelj12qyyfi03kqxy.xyz/i.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	976	1432	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
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 (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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
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\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	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

1432 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1432 EXCEL.EXE
1432 EXCEL.EXE
1432 EXCEL.EXE

pid	process
1432	EXCEL.EXE

pid	process
1432	EXCEL.EXE
1432	EXCEL.EXE
1432	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.exe
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.exe
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.exe
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.exe
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.exe
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.exe
PID 1432 wrote to memory of 976	1432	EXCEL.EXE	rundll32.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-329225670.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1432

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:976

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/976-6-0x0000000000000000-mapping.dmp

Download
memory/976-7-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1432-2-0x000000002F6A1000-0x000000002F6A4000-memory.dmp

Filesize
12KB

Download
memory/1432-3-0x00000000713C1000-0x00000000713C3000-memory.dmp

Filesize
8KB

Download
memory/1432-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1744-5-0x000007FEF61D0000-0x000007FEF644A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads