c50b2e12e8f416c1e3980c9d2cc6a9b0c9c9bc2a0af9c1ba91568b234a395ac6

General

Target

c50b2e12e8f416c1e3980c9d2cc6a9b0c9c9bc2a0af9c1ba91568b234a395ac6.xls
Size

95KB
MD5

54b83539bdc1307b861f236e55bcd2a7
SHA1

59ad04d9a8b060497ba522d06b4a5f40dce7bfdb
SHA256

c50b2e12e8f416c1e3980c9d2cc6a9b0c9c9bc2a0af9c1ba91568b234a395ac6
SHA512

01b891989021ecde840fa2bf7c4e4de789b361b74432edf95ce6f1e938f966a7d6b194aaf8054480e3555a5c80a00c711085c0363536238ce9626ada5c2fcaf0

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/

xlm40.dropper

http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/

xlm40.dropper

http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/

xlm40.dropper

http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4572	2556	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4952	2556	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4956	2556	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4964	2556	regsvr32.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2556 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2556 EXCEL.EXE
2556 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE
2556	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2556 wrote to memory of 4572	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4572	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4952	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4952	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4956	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4956	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4964	2556	EXCEL.EXE	regsvr32.exe
PID 2556 wrote to memory of 4964	2556	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\c50b2e12e8f416c1e3980c9d2cc6a9b0c9c9bc2a0af9c1ba91568b234a395ac6.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2556

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4572

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4952

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4956

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4964

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2556-118-0x00007FF9083D0000-0x00007FF9083E0000-memory.dmp

Filesize
64KB

Download
memory/2556-119-0x00007FF9083D0000-0x00007FF9083E0000-memory.dmp

Filesize
64KB

Download
memory/2556-120-0x00007FF9083D0000-0x00007FF9083E0000-memory.dmp

Filesize
64KB

Download
memory/2556-121-0x00007FF9083D0000-0x00007FF9083E0000-memory.dmp

Filesize
64KB

Download
memory/2556-130-0x00007FF9051B0000-0x00007FF9051C0000-memory.dmp

Filesize
64KB

Download
memory/2556-131-0x00007FF9051B0000-0x00007FF9051C0000-memory.dmp

Filesize
64KB

Download
memory/4572-254-0x0000000000000000-mapping.dmp

Download
memory/4952-255-0x0000000000000000-mapping.dmp

Download
memory/4956-256-0x0000000000000000-mapping.dmp

Download
memory/4964-257-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads