a668da8e561f5947a334578067e6f2340af372fe5c4d1d6cb693acf459405755

Analysis

max time kernel
135s
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
02-04-2023 22:46

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General

Target

bip.poznan.pl_public_bip_attachments.html_co=show&&id=93691&instance=1044&lang=pl.xls
Size

624KB
MD5

7b3f6c8eddbbeb2a5e6a9712663905b8
SHA1

7882ec6a9bb97a5f6c6b30d91b325f2bffc33727
SHA256

a668da8e561f5947a334578067e6f2340af372fe5c4d1d6cb693acf459405755
SHA512

27432659d792eae0493d6a6883862c41fe69d2639c121afdab0311bde6a82df37a23ceeb6870425719819f550a6ac59d4ac427f21275f47a526e353494416fed
SSDEEP

12288:7aX8WOHHLzBfHZVEUZmIGZbDQFP7hBBucUhLU:UGxHoIGZbDQFj8cUhLU

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

1000 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1000 EXCEL.EXE
1000 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	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=93691&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:1000

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/1000-133-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-135-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-134-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-136-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-137-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-138-0x00007FF85B190000-0x00007FF85B1A0000-memory.dmp

Filesize
64KB

Download
memory/1000-139-0x00007FF85B190000-0x00007FF85B1A0000-memory.dmp

Filesize
64KB

Download
memory/1000-155-0x000001D150610000-0x000001D150810000-memory.dmp

Filesize
2.0MB

Download
memory/1000-196-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-197-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-198-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download
memory/1000-199-0x00007FF85D670000-0x00007FF85D680000-memory.dmp

Filesize
64KB

Download