c4b719a9c4be245f031da0e86defe002c8891828cbfe63ed15d3dc75655832b8

Analysis

max time kernel
180s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 03:10

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General

Target

5ίί.xls
Size

60KB
MD5

fea69535764564efcb07963a420dcb4b
SHA1

eb7762cc19a586e06594aed9804c1af7106d7ecd
SHA256

f3c4ff5ee8123f74d233f068a7186c8a22bcd1cdbe6475654345fc76870bd20f
SHA512

8c2e8f23b17e736ef0553c2590a0954a8fdfde461be107b6d0bf4d33ed72e8c1413d2ad26db320613574142779a8f8a2be24c3231db0974291c3638fb8d3ecaf
SSDEEP

1536:sIIIGxPTr6FaSkLu6pAJqNuYKl6Nc7yRzs1H75wkZUiEfClsQ6NqTBun5oAKG6EI:KKl6Nc7yRzs1H75wkZUgsQ6NqTBun5oE

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

cmd.execmd.execmd.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	4668	4264	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4916	4264	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5084	4264	cmd.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

4264 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE
4264 EXCEL.EXE

pid	process
4264	EXCEL.EXE

pid	process
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4264 wrote to memory of 4668	4264	EXCEL.EXE	cmd.exe
PID 4264 wrote to memory of 4668	4264	EXCEL.EXE	cmd.exe
PID 4264 wrote to memory of 4916	4264	EXCEL.EXE	cmd.exe
PID 4264 wrote to memory of 4916	4264	EXCEL.EXE	cmd.exe
PID 4264 wrote to memory of 5084	4264	EXCEL.EXE	cmd.exe
PID 4264 wrote to memory of 5084	4264	EXCEL.EXE	cmd.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\5ίί.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4264

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\echo.XLS"
2⤵
- Process spawned unexpected child process
PID:4668

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\echo.XLS"
2⤵
- Process spawned unexpected child process
PID:4916

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\echo.XLS"
2⤵
- Process spawned unexpected child process
PID:5084

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/4264-132-0x00007FFC713F0000-0x00007FFC71400000-memory.dmp

Filesize
64KB

Download
memory/4264-133-0x00007FFC713F0000-0x00007FFC71400000-memory.dmp

Filesize
64KB

Download
memory/4264-134-0x00007FFC713F0000-0x00007FFC71400000-memory.dmp

Filesize
64KB

Download
memory/4264-135-0x00007FFC713F0000-0x00007FFC71400000-memory.dmp

Filesize
64KB

Download
memory/4264-136-0x00007FFC713F0000-0x00007FFC71400000-memory.dmp

Filesize
64KB

Download
memory/4264-137-0x00007FFC6F060000-0x00007FFC6F070000-memory.dmp

Filesize
64KB

Download
memory/4264-138-0x00007FFC6F060000-0x00007FFC6F070000-memory.dmp

Filesize
64KB

Download
memory/4668-139-0x0000000000000000-mapping.dmp

Download
memory/4916-140-0x0000000000000000-mapping.dmp

Download
memory/5084-141-0x0000000000000000-mapping.dmp

Download