ef63377af7c07bd4020d72c6f014e22f2df22cca0c507c7beedd79d0612ae106

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 20:41

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General

Target

ef63377af7c07bd4020d72c6f014e22f2df22cca0c507c7beedd79d0612ae106.xls
Size

47KB
MD5

3311e632600d66faf08f6142f0433c19
SHA1

c0712f58dc4df3025ad65d484273ee2eddf16478
SHA256

ef63377af7c07bd4020d72c6f014e22f2df22cca0c507c7beedd79d0612ae106
SHA512

fc1216a0d7feae1635f221992500d06169ffe5211b452c09d29e8745076516a8e937ff7aca1ec3675c9812dc9410dd74edfcd123207113ae789bda653ac0953d
SSDEEP

768:yDM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JOiX6DGwUk7qHDSEuRZjiBp5X:y62tfQXi8vgLZkTOHkQT51Vp6AwPe8gl

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://eleselektromekanik.com/69Iq5Pwbd0/s/

xlm40.dropper

https://demo.icn.com.np/stories/Qk/

xlm40.dropper

http://demo34.ckg.hk/service/Atk7RQfUV673M/

xlm40.dropper

https://bitmovil.mx/css/TrgyPiTXy3/

xlm40.dropper

http://dupot.cz/tvhost/DUnMUvwZOhQs/

xlm40.dropper

http://focanainternet.com.br/erros/DepAK3p1Y/

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

regsvr32.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	2840	3220	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 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

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3220 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3220 EXCEL.EXE
3220 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3220 wrote to memory of 2840	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 2840	3220	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\ef63377af7c07bd4020d72c6f014e22f2df22cca0c507c7beedd79d0612ae106.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:3220
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32.exe ..\wnrul.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
a8014241c516afcb852e67c39906339d

SHA1
0e4b9ff9ae4c9488e51fe1b75d40833b2b2b1d33

SHA256
3323a5acb34eef3299336d984e4f3b8c86a43c5d1afd8df6078954f4d50c4fac

SHA512
50c1d0131bc1941575a9f4bedec827ab45b421b9041ece3e118dc5d3df62064e0b431570ef2885a9ffa0bc7c5f2eda52b896bb393286ff802c9fb14496908148

Download Submit
C:\Users\Admin\wnrul.ocx

Filesize
3KB

MD5
cc666088a917dd7f5da8b6689069aec0

SHA1
f688de634ccd20939a522391abb5049483e726bd

SHA256
332d102987273318f13e7fc89a043613c6dd5dd7eb7d21033a2ab73dd438a405

SHA512
77a15aebeb10d355e3723fdebd2ea59a09a60d54f09ab9a6f06c52dbfa3bea0965ff49b7a1c2e6f4ff94f3fe903e6301188de2f80801a8a978c8c09b3356c8dc

Download Submit
memory/3220-17-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-49-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-8-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-9-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-11-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-10-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-1-0x00007FFEE438D000-0x00007FFEE438E000-memory.dmp

Filesize
4KB

Download
memory/3220-12-0x00007FFEA1F40000-0x00007FFEA1F50000-memory.dmp

Filesize
64KB

Download
memory/3220-13-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-3-0x00007FFEA4370000-0x00007FFEA4380000-memory.dmp

Filesize
64KB

Download
memory/3220-14-0x00007FFEA1F40000-0x00007FFEA1F50000-memory.dmp

Filesize
64KB

Download
memory/3220-2-0x00007FFEA4370000-0x00007FFEA4380000-memory.dmp

Filesize
64KB

Download
memory/3220-16-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-18-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-21-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-22-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-20-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-5-0x00007FFEA4370000-0x00007FFEA4380000-memory.dmp

Filesize
64KB

Download
memory/3220-7-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-6-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-19-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-4-0x00007FFEA4370000-0x00007FFEA4380000-memory.dmp

Filesize
64KB

Download
memory/3220-41-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-42-0x00007FFEE438D000-0x00007FFEE438E000-memory.dmp

Filesize
4KB

Download
memory/3220-43-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-46-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-48-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-52-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-56-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-55-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-54-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-53-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-51-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-50-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-15-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-47-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-45-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-44-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-60-0x00007FFEE42F0000-0x00007FFEE44E5000-memory.dmp

Filesize
2.0MB

Download
memory/3220-0-0x00007FFEA4370000-0x00007FFEA4380000-memory.dmp

Filesize
64KB

Download