781466451ed8c387b75d8da6d4193fb52ba6a476556f18a259a624527de9466a

Analysis

max time kernel
82s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02-04-2023 22:47

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General

Target

bip.poznan.pl_public_bip_attachments.html_co=show&&id=85496&instance=1044&lang=pl.xls
Size

626KB
MD5

ec603330ebabb1a34ec73e617ce5276e
SHA1

5b321c825cdab28bcad7107679fa4f818f6a7fdf
SHA256

781466451ed8c387b75d8da6d4193fb52ba6a476556f18a259a624527de9466a
SHA512

97a34e812c62555586205e0136849f811c69816d6315f8c6eaf9c17ea5ef5345a6c1db9b90789ae28ace4599539270c5754f8982d1c5a8d52337ef5beeb8cce0
SSDEEP

12288:0auCWZZLBTD0UrBEUZfIGZB6nlGF9U1tRYeB+sj:wF0UHIGZB6nlm9U1tRY6j

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 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

4944 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4944 EXCEL.EXE
4944 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.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\bip.poznan.pl_public_bip_attachments.html_co=show&&id=85496&instance=1044&lang=pl.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4944

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/4944-133-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-135-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-134-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-136-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-137-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-138-0x00007FFA92510000-0x00007FFA92520000-memory.dmp

Filesize
64KB

Download
memory/4944-139-0x00007FFA92510000-0x00007FFA92520000-memory.dmp

Filesize
64KB

Download
memory/4944-171-0x00000175DFDB0000-0x00000175DFFB0000-memory.dmp

Filesize
2.0MB

Download
memory/4944-191-0x00000175DFDB0000-0x00000175DFFB0000-memory.dmp

Filesize
2.0MB

Download
memory/4944-197-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-198-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-199-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download
memory/4944-200-0x00007FFA94570000-0x00007FFA94580000-memory.dmp

Filesize
64KB

Download