f9e9300992a934b5c46671bfd308552b4c565427eb7c9f744be2f8631d038597

General

Target

inform_1373.xlsb
Size

74KB
MD5

4ce66b772dc6f8c4de59f8ebf6cae765
SHA1

a5deb92e214d8c21b159d9a9682ade54a0172766
SHA256

f9e9300992a934b5c46671bfd308552b4c565427eb7c9f744be2f8631d038597
SHA512

4063e260d0c198cee636fb04627cc3045e7c5de5b8f1674c7fbbeaefb028c28bf7e1c55076d300979f7fd994b62495d7c97b7e62e4975c0e1455f882f2cd20cc

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://onlinestatis.casa/signup.jpg

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	944	2008	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\E&xport to Microsoft Excel	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
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\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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2008 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2008 EXCEL.EXE
2008 EXCEL.EXE
2008 EXCEL.EXE

pid	process
2008	EXCEL.EXE

pid	process
2008	EXCEL.EXE
2008	EXCEL.EXE
2008	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2008 wrote to memory of 944	2008	EXCEL.EXE	rundll32.exe
PID 2008 wrote to memory of 944	2008	EXCEL.EXE	rundll32.exe
PID 2008 wrote to memory of 944	2008	EXCEL.EXE	rundll32.exe
PID 2008 wrote to memory of 944	2008	EXCEL.EXE	rundll32.exe
PID 2008 wrote to memory of 944	2008	EXCEL.EXE	rundll32.exe
PID 2008 wrote to memory of 944	2008	EXCEL.EXE	rundll32.exe
PID 2008 wrote to memory of 944	2008	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\inform_1373.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\NvuiUvS\esardhI\DxmHxoC.dll,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:944

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/944-6-0x0000000000000000-mapping.dmp

Download
memory/944-7-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1088-5-0x000007FEF6850000-0x000007FEF6ACA000-memory.dmp

Filesize
2.5MB

Download
memory/2008-2-0x000000002F6B1000-0x000000002F6B4000-memory.dmp

Filesize
12KB

Download
memory/2008-3-0x00000000719D1000-0x00000000719D3000-memory.dmp

Filesize
8KB

Download
memory/2008-4-0x000000005FFF0000-0x0000000060000000-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