19f9386be36c5a6d83741c5eda9ad8c731c035f000ba19bf26317af7467655d5

General

Target

catalog-1977979364.xls
Size

367KB
MD5

542daaed277c1dbcd2428f129f063446
SHA1

40d7febead1825ef1fa1ddbda956db673a655b84
SHA256

28e9c65dc02ac450a6c1b3b14ec119a3e551a72ee79d8db484e33002ca17508f
SHA512

d3a92bd2408efd280fc87f9d2334850d287af4d6595243acc92573ef50fb17cbaadb0838b760933cb4268638d0f19ae832bdef5db0b8c6219c5b5940bee7b200

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://smartpalakatva.com/edQsUZOLlE/th.html

xlm40.dropper

https://pilstlcommodities.com/Ov4FlB3lpy/th.html

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

rundll32.exerundll32.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	1876	1972	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	408	1972	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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1972 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1972 EXCEL.EXE
1972 EXCEL.EXE
1972 EXCEL.EXE

pid	process
1972	EXCEL.EXE

pid	process
1972	EXCEL.EXE
1972	EXCEL.EXE
1972	EXCEL.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 1876	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	EXCEL.EXE	rundll32.exe
PID 1972 wrote to memory of 408	1972	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\catalog-1977979364.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1876

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:408

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/408-64-0x0000000000000000-mapping.dmp

Download
memory/1876-62-0x0000000000000000-mapping.dmp

Download
memory/1876-63-0x00000000760B1000-0x00000000760B3000-memory.dmp

Filesize
8KB

Download
memory/1972-59-0x000000002F5B1000-0x000000002F5B4000-memory.dmp

Filesize
12KB

Download
memory/1972-60-0x0000000071141000-0x0000000071143000-memory.dmp

Filesize
8KB

Download
memory/1972-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads