dc0a3e25871596a368e26566d77da6de8c0a4edb43750fe617bb5036758f0ae7

General

Target

ATTACHMENTS.xlsx
Size

713KB
MD5

c24c99e3c4a213b7356d63e5646d4457
SHA1

7edbbb43143714139acdc66057b4fa884c8fdb07
SHA256

dc0a3e25871596a368e26566d77da6de8c0a4edb43750fe617bb5036758f0ae7
SHA512

e220612c7d9701c9397d8d69c86ed492e11f3d2b7b43169a59245bd38a92d25c779d71f872d0e7abe2906e6df69cc8629c2a8447d3534a89afe6a65b0d1a1624

Score

1^/10

Malware Config

Signatures

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 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

804 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE
804	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 804 wrote to memory of 2340 804 EXCEL.EXE splwow64.exe
PID 804 wrote to memory of 2340 804 EXCEL.EXE splwow64.exe

description	pid	process	target process
PID 804 wrote to memory of 2340	804	EXCEL.EXE	splwow64.exe
PID 804 wrote to memory of 2340	804	EXCEL.EXE	splwow64.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\ATTACHMENTS.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:804

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:2340

MITRE ATT&CK Enterprise v6

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

Loading Replay Monitor...

Downloads

memory/804-121-0x00007FFA8F100000-0x00007FFA901EE000-memory.dmp

Filesize
16.9MB

Download
memory/804-115-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-116-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-117-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-118-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-122-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-114-0x00007FF7F0830000-0x00007FF7F3DE6000-memory.dmp

Filesize
53.7MB

Download
memory/804-123-0x00007FFA8D200000-0x00007FFA8F0F5000-memory.dmp

Filesize
31.0MB

Download
memory/804-274-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-275-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-276-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/804-277-0x00007FFA6EBC0000-0x00007FFA6EBD0000-memory.dmp

Filesize
64KB

Download
memory/2340-260-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads