65511c269199007b6a378c6f8e48fe58b2398deaef305e6aac5a94afa69ade48

General

Target

document-2116115857.xls
Size

138KB
MD5

298b04a1308d15fec52c6ee0de68b208
SHA1

eaa5b596a388458d54e6b7c9313c1b61689ac817
SHA256

f44844a796ae3701b351e396b6fc5ec77120cc46d377c152dac982c9e4498eb3
SHA512

6176f4eb8fa64f004d2981b3ef1762e38010a798ab1f82d941a06c73b444336323154245c6af83710dfdb619ba5ccafec440e5325395aa7dbf208e16a61c1e3e

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	740	1888	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\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
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
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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1888 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1888 EXCEL.EXE
1888 EXCEL.EXE
1888 EXCEL.EXE

pid	process
1888	EXCEL.EXE

pid	process
1888	EXCEL.EXE
1888	EXCEL.EXE
1888	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1888 wrote to memory of 740	1888	EXCEL.EXE	rundll32.exe
PID 1888 wrote to memory of 740	1888	EXCEL.EXE	rundll32.exe
PID 1888 wrote to memory of 740	1888	EXCEL.EXE	rundll32.exe
PID 1888 wrote to memory of 740	1888	EXCEL.EXE	rundll32.exe
PID 1888 wrote to memory of 740	1888	EXCEL.EXE	rundll32.exe
PID 1888 wrote to memory of 740	1888	EXCEL.EXE	rundll32.exe
PID 1888 wrote to memory of 740	1888	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-2116115857.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1888

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:740

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/740-6-0x0000000000000000-mapping.dmp

Download
memory/740-7-0x0000000075781000-0x0000000075783000-memory.dmp

Filesize
8KB

Download
memory/1888-2-0x000000002F341000-0x000000002F344000-memory.dmp

Filesize
12KB

Download
memory/1888-3-0x0000000071271000-0x0000000071273000-memory.dmp

Filesize
8KB

Download
memory/1888-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1948-5-0x000007FEF6080000-0x000007FEF62FA000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads