8471ba21698163c769ff0fb55babf56f7d586c1c01dcc6914f1a17c53f91cf39

General

Target

catalog-2002253741.xls
Size

367KB
MD5

d3fbb2486b3effa30f87eb8eec28929b
SHA1

0b9e5f64275f6e5cd5d6efe23979dd7dceac9667
SHA256

022b64e1a59eb7c5dfbac86cca9b1c98403a1547e96d9a5529a5eb7d958b810d
SHA512

a9f4d6cecd20ea415aa6ef7d54b50976d8443d7fcb8c5e48b9d782a533a49f4a1fb9d1bc0aaaa00dbcf4a00bc2321a38fb7dbdc8f3b0a8eb01a946e41f2c091d

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	1060	1100	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	768	1100	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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
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
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1100 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1100 EXCEL.EXE
1100 EXCEL.EXE
1100 EXCEL.EXE

pid	process
1100	EXCEL.EXE

pid	process
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 1060	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	EXCEL.EXE	rundll32.exe
PID 1100 wrote to memory of 768	1100	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-2002253741.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1100

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1060

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:768

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/768-65-0x0000000000000000-mapping.dmp

Download
memory/1060-63-0x0000000000000000-mapping.dmp

Download
memory/1060-64-0x00000000757D1000-0x00000000757D3000-memory.dmp

Filesize
8KB

Download
memory/1100-60-0x000000002F051000-0x000000002F054000-memory.dmp

Filesize
12KB

Download
memory/1100-61-0x00000000715A1000-0x00000000715A3000-memory.dmp

Filesize
8KB

Download
memory/1100-62-0x000000005FFF0000-0x0000000060000000-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