6256f4c5ab30074d0e4e26eae4b1feeba98c42f4d3f71b8eb0e86e4990004b3d

General

Target

document-87247454.xls
Size

40KB
MD5

e9e5d831d3d478971af9579f7e15722f
SHA1

ddccda0b12d0669c3400c9e24f1cc641dc9d128f
SHA256

4a62d024a5a5ec539df5c50039879221170a508c74fb29a96ee7c3ff785ba300
SHA512

7b6ea9028be2acefeccc7fe406f8c946251b454f31a8220baa8f1254b768a5fe3847d974446eb30821e052e5ce57690e6d7158352ab7381ed6eb54cf427a7b36

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://ywgiu10zmnwcx03vpnyp.com/inda.xls

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	924	1932	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\Se&nd to OneNote	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
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	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1932 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE
1932 EXCEL.EXE

pid	process
1932	EXCEL.EXE

pid	process
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE
1932	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 924	1932	EXCEL.EXE	rundll32.exe
PID 1932 wrote to memory of 324	1932	EXCEL.EXE	splwow64.exe
PID 1932 wrote to memory of 324	1932	EXCEL.EXE	splwow64.exe
PID 1932 wrote to memory of 324	1932	EXCEL.EXE	splwow64.exe
PID 1932 wrote to memory of 324	1932	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-87247454.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\fkruf.djr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:924

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:324

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/324-8-0x0000000000000000-mapping.dmp

Download
memory/324-9-0x000007FEFB541000-0x000007FEFB543000-memory.dmp

Filesize
8KB

Download
memory/924-6-0x0000000000000000-mapping.dmp

Download
memory/924-7-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/1740-5-0x000007FEF5AE0000-0x000007FEF5D5A000-memory.dmp

Filesize
2.5MB

Download
memory/1932-2-0x000000002F981000-0x000000002F984000-memory.dmp

Filesize
12KB

Download
memory/1932-3-0x0000000070BA1000-0x0000000070BA3000-memory.dmp

Filesize
8KB

Download
memory/1932-4-0x000000005FFF0000-0x0000000060000000-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