60ef890d93dd9257cc04fa7b9f90ffe4371b32ae099f72868b681bc70d700835

General

Target

idea-1185148338.xlsb
Size

154KB
MD5

27afd3cad0af041319da0785152d6685
SHA1

357b33d0b5b467989ca396d48e1ecaff06285dad
SHA256

60ef890d93dd9257cc04fa7b9f90ffe4371b32ae099f72868b681bc70d700835
SHA512

02113d53d035af49469cb4a4358f8661d24435d201b487637448c23dc345bf6d53e01eca77c22fcdf211764c74671c887e730e1ae0ea661bd6683ac3b56e1e76

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://ssmdevelopers.in/4RaxIGAPtfPM/yu.html

xlm40.dropper

https://ramblerimport.com/hz4UhluT5au/yu.html

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

regsvr32.exeregsvr32.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	1472	1072	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	672	1072	regsvr32.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1072 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

EXCEL.EXE

description pid process

Token: SeShutdownPrivilege 1072 EXCEL.EXE

description	pid	process
Token: SeShutdownPrivilege	1072	EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 1472	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.exe
PID 1072 wrote to memory of 672	1072	EXCEL.EXE	regsvr32.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\idea-1185148338.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1072

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 ..\vara1.dll
2⤵
- Process spawned unexpected child process
PID:1472

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 ..\vara2.dll
2⤵
- Process spawned unexpected child process
PID:672

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/672-64-0x0000000000000000-mapping.dmp

Download
memory/672-67-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1072-59-0x000000002FBA1000-0x000000002FBA4000-memory.dmp

Filesize
12KB

Download
memory/1072-60-0x00000000715A1000-0x00000000715A3000-memory.dmp

Filesize
8KB

Download
memory/1072-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1472-62-0x0000000000000000-mapping.dmp

Download
memory/1472-63-0x00000000752F1000-0x00000000752F3000-memory.dmp

Filesize
8KB

Download
memory/1472-66-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads