535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137

General

Target

535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137.xls
Size

48KB
MD5

be4fd20947eef2ab8c02d09ff7c9840b
SHA1

499b85913ba0600b00f2622886ec07fc32ea1975
SHA256

535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137
SHA512

ad6adc7fa811a9c17e77a5c494a35443c784a4490f3e1ffc49f368ad3f2ba31b03b77dfb3875be87a1152dde777283ec7f90c65b9e25d9e2a50537ef4d569369
SSDEEP

768:uDM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JL/K9abdDKHGeWmqkySbuR/3ej7d:u62tfQXi8vgLZkTOHkQT51Vp6AwPe8gS

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://famesa.com.ar/dos/gaa/

xlm40.dropper

https://www.fantasyclub.com.br/imgs/rggmVTfvT/

xlm40.dropper

http://ecoarch.com.tw/cgi-bin/vWW/

xlm40.dropper

https://dp-flex.co.jp/cgi-bin/Bt3Ycq5Tix/

xlm40.dropper

http://dharmacomunicacao.com.br/OLD/PjBkVBhUH/

Signatures

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	876	1264	regsvr32.exe	82

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1264	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1264	EXCEL.EXE
1264	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE
1264	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 876	1264	EXCEL.EXE	90
PID 1264 wrote to memory of 876	1264	EXCEL.EXE	90

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137.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:1264
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32.exe ..\wnrul.ocx
  2⤵
  - Process spawned unexpected child process
  PID:876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\wnrul.ocx

Filesize
3KB

MD5
cc666088a917dd7f5da8b6689069aec0

SHA1
f688de634ccd20939a522391abb5049483e726bd

SHA256
332d102987273318f13e7fc89a043613c6dd5dd7eb7d21033a2ab73dd438a405

SHA512
77a15aebeb10d355e3723fdebd2ea59a09a60d54f09ab9a6f06c52dbfa3bea0965ff49b7a1c2e6f4ff94f3fe903e6301188de2f80801a8a978c8c09b3356c8dc

Download Submit
memory/1264-4-0x00007FFA3C650000-0x00007FFA3C660000-memory.dmp

Filesize
64KB

Download
memory/1264-3-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-5-0x00007FFA3C650000-0x00007FFA3C660000-memory.dmp

Filesize
64KB

Download
memory/1264-8-0x00007FFA3C650000-0x00007FFA3C660000-memory.dmp

Filesize
64KB

Download
memory/1264-7-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-11-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-12-0x00007FFA3A3E0000-0x00007FFA3A3F0000-memory.dmp

Filesize
64KB

Download
memory/1264-10-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-9-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-0-0x00007FFA3C650000-0x00007FFA3C660000-memory.dmp

Filesize
64KB

Download
memory/1264-2-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-14-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-6-0x00007FFA3C650000-0x00007FFA3C660000-memory.dmp

Filesize
64KB

Download
memory/1264-16-0x00007FFA3A3E0000-0x00007FFA3A3F0000-memory.dmp

Filesize
64KB

Download
memory/1264-15-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-13-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-1-0x00007FFA7C66D000-0x00007FFA7C66E000-memory.dmp

Filesize
4KB

Download
memory/1264-43-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-44-0x00007FFA7C66D000-0x00007FFA7C66E000-memory.dmp

Filesize
4KB

Download
memory/1264-45-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download
memory/1264-46-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads