cc32bd471e363c94e4ac20d005ad49140b24049ddafc520d91e3cea34d93c8e1

General

Target

document-1815464733.xls
Size

315KB
MD5

ad8abd960da582994c27d5df3ad28be3
SHA1

dad5b3918146089d242da674521ec7719f081d6e
SHA256

ec1cebb04afc604a8a3381ea4d9ad2a77c268e35146740b2eb4565bfa91bb6da
SHA512

c40e7ae19c15ee9a705ce42a92551ac779170a83fde5298e84d19900cd466f82e294fa157175d218101e02e722676b91271baf2ba935312cf5a9497085bd7d15

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://intellectsmart.in/ds/1702.gif

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	564	844	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\MenuExt	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 (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
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
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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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

844 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

844 EXCEL.EXE
844 EXCEL.EXE
844 EXCEL.EXE
844 EXCEL.EXE
844 EXCEL.EXE
844 EXCEL.EXE
844 EXCEL.EXE

pid	process
844	EXCEL.EXE

pid	process
844	EXCEL.EXE
844	EXCEL.EXE
844	EXCEL.EXE
844	EXCEL.EXE
844	EXCEL.EXE
844	EXCEL.EXE
844	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 844 wrote to memory of 564	844	EXCEL.EXE	rundll32.exe
PID 844 wrote to memory of 564	844	EXCEL.EXE	rundll32.exe
PID 844 wrote to memory of 564	844	EXCEL.EXE	rundll32.exe
PID 844 wrote to memory of 564	844	EXCEL.EXE	rundll32.exe
PID 844 wrote to memory of 564	844	EXCEL.EXE	rundll32.exe
PID 844 wrote to memory of 564	844	EXCEL.EXE	rundll32.exe
PID 844 wrote to memory of 564	844	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\document-1815464733.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\woifm.cjd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:564

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/564-6-0x0000000000000000-mapping.dmp

Download
memory/564-7-0x0000000076881000-0x0000000076883000-memory.dmp

Filesize
8KB

Download
memory/844-2-0x000000002F3F1000-0x000000002F3F4000-memory.dmp

Filesize
12KB

Download
memory/844-3-0x0000000071911000-0x0000000071913000-memory.dmp

Filesize
8KB

Download
memory/844-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1984-5-0x000007FEF6790000-0x000007FEF6A0A000-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