d3c3e8da2a5605e86cad1417a6b7a7082307f7a30a6dcd67198fbe6e3ee5b7d0

General

Target

Debt-Details-120792975-05132021.xlsm
Size

196KB
MD5

90213af289c94acae0f36fb613155187
SHA1

826b63a30a1c44ce6ecabab17c64673573088970
SHA256

d3c3e8da2a5605e86cad1417a6b7a7082307f7a30a6dcd67198fbe6e3ee5b7d0
SHA512

09f602952da21b77cd5bc7d61c9739e55c04c874c2abc52aa9f41fc9ac429546e4aae7606575a31646206cacc94130d0cca565c16e8b8685fb227da7de8888ef

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://194.67.203.207/44330.0904949074.dat

xlm40.dropper

http://185.82.217.23/44330.0904949074.dat

xlm40.dropper

http://45.67.230.131/44330.0904949074.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	904	788	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1920	788	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1552	788	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 (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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
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
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
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 (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

788 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

788 EXCEL.EXE
788 EXCEL.EXE
788 EXCEL.EXE
788 EXCEL.EXE
788 EXCEL.EXE
788 EXCEL.EXE
788 EXCEL.EXE

pid	process
788	EXCEL.EXE

pid	process
788	EXCEL.EXE
788	EXCEL.EXE
788	EXCEL.EXE
788	EXCEL.EXE
788	EXCEL.EXE
788	EXCEL.EXE
788	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 904	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1920	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	EXCEL.EXE	rundll32.exe
PID 788 wrote to memory of 1552	788	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-120792975-05132021.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:904

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1920

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1552

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

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Downloads

memory/788-59-0x000000002FB41000-0x000000002FB44000-memory.dmp

Filesize
12KB

Download
memory/788-60-0x0000000071711000-0x0000000071713000-memory.dmp

Filesize
8KB

Download
memory/788-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/904-62-0x0000000000000000-mapping.dmp

Download
memory/904-63-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/1552-66-0x0000000000000000-mapping.dmp

Download
memory/1920-64-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads