9178c52f3b0fd561a2dc1ed1f075dc647dbd8aa12b89355b159a16706f383b18

General

Target

inform_1947.xlsb
Size

63KB
MD5

8a45db195455249ec54f996d552f93bd
SHA1

f66dd2cfae0f4447e3dc26745eb3f330a07c4184
SHA256

9178c52f3b0fd561a2dc1ed1f075dc647dbd8aa12b89355b159a16706f383b18
SHA512

65a8d73d97ba8f8868a5f7d7905b0959b14a497f69e7349e8d7160800a83b4f901c655f094fdc85b95ec49ca8a449baf9a33ebc0c719482ec3747d3f9ea15e63

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	300	1904	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
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\Toolbar\ShowDiscussionButton = "Yes"	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 (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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1904 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE

pid	process
1904	EXCEL.EXE

pid	process
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1904 wrote to memory of 300	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 300	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 300	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 300	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 300	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 300	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 300	1904	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_1947.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\NvuiUvS\esardhI\DxmHxoC.dll,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:300

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/300-6-0x0000000000000000-mapping.dmp

Download
memory/300-7-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download
memory/1808-5-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp

Filesize
2.5MB

Download
memory/1904-2-0x000000002FC31000-0x000000002FC34000-memory.dmp

Filesize
12KB

Download
memory/1904-3-0x00000000715E1000-0x00000000715E3000-memory.dmp

Filesize
8KB

Download
memory/1904-4-0x000000005FFF0000-0x0000000060000000-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