9e14bd281dfb18a1b470d0139771467e3a8dceec607c098592d9e60d611806d0

General

Target

Debt-Details-1177944144-05132021.xlsm
Size

196KB
MD5

188f372d38f45000605ce882c6ceecba
SHA1

30d7c58f1af1fa52051e6d800f2dd9eae3c4318c
SHA256

0fb57c7dee5bda8e0f90fe490053d74862cc7c01ff34737ae441d9994a2704b5
SHA512

85430fe333f03034d62c55705f6a0caa5b3a54850b4a3b13373e0093c1a5670b387e73953ff5caf0da66fd2a85528988ebe8083f919499f11157dc6432072da1

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://194.67.203.207/44329.6529623843.dat

xlm40.dropper

http://185.82.217.23/44329.6529623843.dat

xlm40.dropper

http://45.67.230.131/44329.6529623843.dat

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

rundll32.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	472	1688	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1836	1688	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1540	1688	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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
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 (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
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1688 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1688 EXCEL.EXE
1688 EXCEL.EXE
1688 EXCEL.EXE
1688 EXCEL.EXE
1688 EXCEL.EXE
1688 EXCEL.EXE
1688 EXCEL.EXE

pid	process
1688	EXCEL.EXE

pid	process
1688	EXCEL.EXE
1688	EXCEL.EXE
1688	EXCEL.EXE
1688	EXCEL.EXE
1688	EXCEL.EXE
1688	EXCEL.EXE
1688	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 472	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1836	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	EXCEL.EXE	rundll32.exe
PID 1688 wrote to memory of 1540	1688	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\Debt-Details-1177944144-05132021.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1688

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:472

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1836

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1540

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/472-63-0x0000000000000000-mapping.dmp

Download
memory/472-64-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/1540-67-0x0000000000000000-mapping.dmp

Download
memory/1688-60-0x000000002F111000-0x000000002F114000-memory.dmp

Filesize
12KB

Download
memory/1688-61-0x0000000071361000-0x0000000071363000-memory.dmp

Filesize
8KB

Download
memory/1688-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1836-65-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads