dc9cd146ea34015db3d53ec5226fc2abffb9af84d08d0d17b7194a09246b1d21

General

Target

catalog-286182570.xls
Size

367KB
MD5

1f1c8c9b9cb803c5e981b4b3b72d0a6b
SHA1

6700de6449e0f2a29f5e75927c1eaf30c1082903
SHA256

d07cd5fe8ad399a4c3c7464d9b58c8bc1542cddd08c42d9f580bae86f45ba5b8
SHA512

061179f6cd73fbed671e8fa9259155038418207c2940f47fdc4ccb6616b594bb2a7b4bce7fb54a82552b466ed07382bf74ab41de24809d5717700299127fc3bd

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	632	1840	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	304	1840	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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	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\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1840 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1840 EXCEL.EXE
1840 EXCEL.EXE
1840 EXCEL.EXE

pid	process
1840	EXCEL.EXE

pid	process
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 632	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 304	1840	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-286182570.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\tuti.rut,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:632
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\tuti.rut1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:304

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/304-65-0x0000000000000000-mapping.dmp

Download
memory/632-63-0x0000000000000000-mapping.dmp

Download
memory/632-64-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/1840-60-0x000000002FBF1000-0x000000002FBF4000-memory.dmp

Filesize
12KB

Download
memory/1840-61-0x0000000071831000-0x0000000071833000-memory.dmp

Filesize
8KB

Download
memory/1840-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads