dd09cf89a66d0420bf0eefd361a37cb11cecd8b181f8c7598db3f4a3ed5c0a01

Analysis

max time kernel
114s
max time network
158s
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.att_co=show&&id=6335&instance=1044&lang=pl.xls
Size

612KB
MD5

af32838cf4f2032d0fe0bd13a1920dc1
SHA1

aa6a94fef05db85b876636e82703fea8960e1d52
SHA256

dd09cf89a66d0420bf0eefd361a37cb11cecd8b181f8c7598db3f4a3ed5c0a01
SHA512

c966759bd1151072614dc074bd015c114e36a42b4e98ff1995593a7bd03383f24c92fdcc166f1a1d355c5e2ae3bad73c3db9c8fedf7586a4ebd1055b8e7513ce
SSDEEP

12288:Ma4RWKfJ84VUoiA7B4VWEH1y4HDjeBHua:yhGa4VWEH1y4HDj7a

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1944 EXCEL.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

EXCEL.EXE

pid process

1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE

pid	process
1944	EXCEL.EXE

pid	process
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	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.att_co=show&&id=6335&instance=1044&lang=pl.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1944

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/1944-134-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-136-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-135-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-137-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-138-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-139-0x00007FF944370000-0x00007FF944380000-memory.dmp

Filesize
64KB

Download
memory/1944-141-0x00007FF944370000-0x00007FF944380000-memory.dmp

Filesize
64KB

Download
memory/1944-160-0x0000017ED1A70000-0x0000017ED1C70000-memory.dmp

Filesize
2.0MB

Download
memory/1944-177-0x0000017ED1A70000-0x0000017ED1C70000-memory.dmp

Filesize
2.0MB

Download
memory/1944-205-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-206-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-207-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download
memory/1944-208-0x00007FF9463D0000-0x00007FF9463E0000-memory.dmp

Filesize
64KB

Download