17c3baf17d9554c9a4b2b97531a543e2b85c8e610e94166aff92b8a379ff02b9

General

Target

catalog-268659284.xls
Size

367KB
MD5

5f99884ea5bf05be70712229549b6fd7
SHA1

6e83b69f00255ae1790193a619e26424c57adab7
SHA256

7917e7cff57a2ae16153745a920e523398f7493a00151531fb4c2378b32094f9
SHA512

6cc7620fd60e9cf1f19356df76b56bfa4a98dae64f40efc62f6af699bc05793043ebd0c1ae47c6861ba56a8da93e149507dd27e4bdca5cd329ed71ec6102cde2

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	1116	1640	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	324	1640	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 (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1640 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1640 EXCEL.EXE
1640 EXCEL.EXE
1640 EXCEL.EXE

pid	process
1640	EXCEL.EXE

pid	process
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 1116	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 324	1640	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-268659284.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1116

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
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/324-64-0x0000000000000000-mapping.dmp

Download
memory/1116-62-0x0000000000000000-mapping.dmp

Download
memory/1116-63-0x0000000075631000-0x0000000075633000-memory.dmp

Filesize
8KB

Download
memory/1640-59-0x000000002F391000-0x000000002F394000-memory.dmp

Filesize
12KB

Download
memory/1640-60-0x0000000071081000-0x0000000071083000-memory.dmp

Filesize
8KB

Download
memory/1640-61-0x000000005FFF0000-0x0000000060000000-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