54c0dc22322796074802d7607c3bfa52f802aecf8c3ad61d632c2c050f4cbcc9

General

Target

Overdue-Debt-1152978906-03042021.xls
Size

76KB
MD5

74ce952fc86ff58ebf10821926bb7ec5
SHA1

61451bf8547c8ade0b32b63b2bfdea228de29873
SHA256

8a80afbf0c5a61bca399013f7342d15c2f967b71e9ca41b494ad84d92450bf01
SHA512

a600419fb2a08e117f240171c400e20c4c6f510fb3c6736b0cb2de50d4cf5126574517542a3ebaddde30a99fc8958e18c391e1e502142ddb104118ae0282d219

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://stumbletrouser.com/hpbifbnnuauj/44259.7793224537.jpg

xlm40.dropper

http://bewitchedcracks.com/zmihkvffum/44259.7793224537.jpg

xlm40.dropper

http://hoverknot.com/ebifn/44259.7793224537.jpg

xlm40.dropper

http://embracepart.com/arphdhodl/44259.7793224537.jpg

xlm40.dropper

http://fathesrlyunny.com/zrvmj/44259.7793224537.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	1148	292	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	536	292	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1548	292	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1560	292	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	816	292	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\Toolbar	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
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
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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

292 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE

pid	process
292	EXCEL.EXE

pid	process
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1148	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 536	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1548	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1560	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 816	292	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-1152978906-03042021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:292

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1148

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:536

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1548

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1560

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:816

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/292-2-0x000000002F6A1000-0x000000002F6A4000-memory.dmp

Filesize
12KB

Download
memory/292-3-0x0000000071CE1000-0x0000000071CE3000-memory.dmp

Filesize
8KB

Download
memory/292-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/536-8-0x0000000000000000-mapping.dmp

Download
memory/816-14-0x0000000000000000-mapping.dmp

Download
memory/1064-5-0x000007FEF7EB0000-0x000007FEF812A000-memory.dmp

Filesize
2.5MB

Download
memory/1148-6-0x0000000000000000-mapping.dmp

Download
memory/1148-7-0x0000000076861000-0x0000000076863000-memory.dmp

Filesize
8KB

Download
memory/1548-10-0x0000000000000000-mapping.dmp

Download
memory/1560-12-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads