b3ff5ffeb8b96468104c9d2ce682349ece6032dc791f69fc2ce9af0f731843b9

General

Target

Overdue-Debt-1085351754-03042021.xls
Size

76KB
MD5

fbc2558287adf23b5f7d32851709f29b
SHA1

d8cac6413b9be9d8df57e7e14fde6d9ebe2a4daf
SHA256

b3ff5ffeb8b96468104c9d2ce682349ece6032dc791f69fc2ce9af0f731843b9
SHA512

7abb408af85e95bac9ee3d36fc5d9d7ba9772138ff0b5619cbcbf5758859dcb7af1b2022baf6cef387d1ae4731af27d7b647a14250a6046ee1ce7aea6f9d8433

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://goscrawny.com/kfjzyxi/44259.8181746528.jpg

xlm40.dropper

http://cooperationoffense.com/vitaotme/44259.8181746528.jpg

xlm40.dropper

http://goaqaba.com/ccwidd/44259.8181746528.jpg

xlm40.dropper

http://virtuebeauty.org/srquxjdyy/44259.8181746528.jpg

xlm40.dropper

http://calfgiant.com/swsejhakai/44259.8181746528.jpg

Signatures

Process spawned unexpected child process 5 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.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	296	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	996	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	568	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	668	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	964	1044	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
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1044 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1044 EXCEL.EXE
1044 EXCEL.EXE
1044 EXCEL.EXE

pid	process
1044	EXCEL.EXE

pid	process
1044	EXCEL.EXE
1044	EXCEL.EXE
1044	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 296	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 996	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 568	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 668	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	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\Overdue-Debt-1085351754-03042021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:296

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:996

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:568

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:668

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:964

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/296-6-0x0000000000000000-mapping.dmp

Download
memory/296-7-0x00000000760A1000-0x00000000760A3000-memory.dmp

Filesize
8KB

Download
memory/568-10-0x0000000000000000-mapping.dmp

Download
memory/668-12-0x0000000000000000-mapping.dmp

Download
memory/964-14-0x0000000000000000-mapping.dmp

Download
memory/996-8-0x0000000000000000-mapping.dmp

Download
memory/1044-2-0x000000002F731000-0x000000002F734000-memory.dmp

Filesize
12KB

Download
memory/1044-3-0x0000000071051000-0x0000000071053000-memory.dmp

Filesize
8KB

Download
memory/1044-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1980-5-0x000007FEF77C0000-0x000007FEF7A3A000-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