01bda03412e26c8cc432de1d5837dc69cc538a73080ac0bfbf3708619fdf7ef6

General

Target

sample (3).xls
Size

233KB
MD5

7dad6e822b5c1ecb7213f8fff393343b
SHA1

915cfef6c4980aef9dd27de5126d3bd526c85d09
SHA256

01bda03412e26c8cc432de1d5837dc69cc538a73080ac0bfbf3708619fdf7ef6
SHA512

5760437c44306d7f3a83f3b57db4faf84612442d3673350fe614db0ea49240418870f1ff6f92774521bafd41320a27a14b4fee957908ded6f26662f253553f9e

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://188.127.254.114/44271.0488724537.dat

xlm40.dropper

http://185.82.219.160/44271.0488724537.dat

xlm40.dropper

http://45.140.146.34/44271.0488724537.dat

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

Rundll32.exeRundll32.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	1620	744	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	324	744	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	112	744	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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

744 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

744 EXCEL.EXE
744 EXCEL.EXE
744 EXCEL.EXE

pid	process
744	EXCEL.EXE

pid	process
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 1620	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 324	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	EXCEL.EXE	Rundll32.exe
PID 744 wrote to memory of 112	744	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\sample (3).xls"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744

C:\Windows\SysWOW64\Rundll32.exe
Rundll32 ..\SOT.GOT,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1620

C:\Windows\SysWOW64\Rundll32.exe
Rundll32 ..\SOT.GOT1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:324

C:\Windows\SysWOW64\Rundll32.exe
Rundll32 ..\SOT.GOT2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:112

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/112-10-0x0000000000000000-mapping.dmp

Download
memory/324-8-0x0000000000000000-mapping.dmp

Download
memory/744-2-0x000000002FF71000-0x000000002FF74000-memory.dmp

Filesize
12KB

Download
memory/744-3-0x0000000071441000-0x0000000071443000-memory.dmp

Filesize
8KB

Download
memory/744-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1620-6-0x0000000000000000-mapping.dmp

Download
memory/1620-7-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1756-5-0x000007FEF7590000-0x000007FEF780A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads