3822bf638906a587b1810852af17e49b861b60525b4fd286b21fa6ec1153d944

General

Target

catalog-2139086320.xls
Size

367KB
MD5

9efe20e7dc4f210318048930099888a0
SHA1

b2dedd799f1a94e55ee747982418069727c38b09
SHA256

8ea01326ff4161e3cd3d5a5098ccc9b3b89b9b8a96982508c565dd3c712f3ff0
SHA512

f20dd396303acd49f11be3e94b3bef24407de326765cb88bfc08a99d2e0e426551b95cbaa1f4f490580e16aaf2190394eb9f0f53ca19331b7ee15567deb8a03d

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	1648	1840	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	280	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
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
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
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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
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	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

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 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 1648	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	1840	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 280	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-2139086320.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:1648

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:280

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/280-65-0x0000000000000000-mapping.dmp

Download
memory/1648-63-0x0000000000000000-mapping.dmp

Download
memory/1648-64-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/1840-60-0x000000002FFE1000-0x000000002FFE4000-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 Matrix ATT&CK v6

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Downloads