c99cd98659076b6fdc7489fbac5fc37fb74d7277e2ae9299804486c651f7420a

Analysis

max time kernel
154s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01-04-2023 19:55

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General

Target

805172bc285c8abf34e38e9431a9410d3bbc12041ad7f66081027bfaa79f424e.xlsm
Size

20KB
MD5

6f700a6eda0cc8dfc73a536713fc367a
SHA1

3b74c1cfb772067dcadb462062009440bc287bc8
SHA256

805172bc285c8abf34e38e9431a9410d3bbc12041ad7f66081027bfaa79f424e
SHA512

9aa807575c2a2ea81bc48eeb2ac7051043c62c1c7eb67d35eab57cdeb248558c8d365e22eec78fb141afe1d72cf92a10351255354621d2da45f5a7c76f38badb
SSDEEP

384:u5PW4cGz9IpUCIyr8A1qInSBJkWzjZeJk+IOUlM9z4c:u5PRipUCxD1qzk+5Ox0c

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://yourdesicart.com/errors.php

xlm40.dropper

http://melis.com.ar/errors.php

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	2308	1696	rundll32.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

1696 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1696 EXCEL.EXE
1696 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1696 wrote to memory of 2308	1696	EXCEL.EXE	rundll32.exe
PID 1696 wrote to memory of 2308	1696	EXCEL.EXE	rundll32.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\805172bc285c8abf34e38e9431a9410d3bbc12041ad7f66081027bfaa79f424e.xlsm"
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:1696

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\qHvqH.txt,mvBqlyq
2⤵
- Process spawned unexpected child process
PID:2308

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1696-133-0x00007FFDF1390000-0x00007FFDF13A0000-memory.dmp

Filesize
64KB

Download
memory/1696-135-0x00007FFDF1390000-0x00007FFDF13A0000-memory.dmp

Filesize
64KB

Download
memory/1696-134-0x00007FFDF1390000-0x00007FFDF13A0000-memory.dmp

Filesize
64KB

Download
memory/1696-136-0x00007FFDF1390000-0x00007FFDF13A0000-memory.dmp

Filesize
64KB

Download
memory/1696-137-0x00007FFDF1390000-0x00007FFDF13A0000-memory.dmp

Filesize
64KB

Download
memory/1696-138-0x00007FFDEF160000-0x00007FFDEF170000-memory.dmp

Filesize
64KB

Download
memory/1696-139-0x00007FFDEF160000-0x00007FFDEF170000-memory.dmp

Filesize
64KB

Download