76e0c81fa6076eaee018d7492805895978e65737ec78d04912a7c18401d3b52b

Analysis

max time kernel
168s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2022 17:27

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General

Target

76e0c81fa6076eaee018d7492805895978e65737ec78d04912a7c18401d3b52b.xls
Size

95KB
MD5

45c665e835a43a662cf5ceeb05105698
SHA1

bb50cb44661b242a9bbabc31d54b9ef352ee8c7c
SHA256

76e0c81fa6076eaee018d7492805895978e65737ec78d04912a7c18401d3b52b
SHA512

186997feabb608660e8888aecfac2b8e8c1f64d656b61f5ffaeb76e42b6754417d5f6dd8329af1220c5d4ff537be9557ce31f3a4e464bd63ef69941349798f48
SSDEEP

1536:c+++8H+C8CU+d/jbqKV6+Z5wqC7UXtl6Nc7yRzs1H75wkZUiEfClsCq6NqTBun5v:+tl6Nc7yRzs1H75wkZUgsCq6NqTBun5x

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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\D7775E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

5004 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\D7775E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE
5004	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 5004 wrote to memory of 400 5004 EXCEL.EXE splwow64.exe
PID 5004 wrote to memory of 400 5004 EXCEL.EXE splwow64.exe

description	pid	process	target process
PID 5004 wrote to memory of 400	5004	EXCEL.EXE	splwow64.exe
PID 5004 wrote to memory of 400	5004	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\76e0c81fa6076eaee018d7492805895978e65737ec78d04912a7c18401d3b52b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5004

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:400

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:508

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/400-139-0x0000000000000000-mapping.dmp

Download
memory/5004-132-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-133-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-134-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-135-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-136-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-137-0x00007FFEC40F0000-0x00007FFEC4100000-memory.dmp

Filesize
64KB

Download
memory/5004-138-0x00007FFEC40F0000-0x00007FFEC4100000-memory.dmp

Filesize
64KB

Download
memory/5004-141-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-143-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-142-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download
memory/5004-144-0x00007FFEC6450000-0x00007FFEC6460000-memory.dmp

Filesize
64KB

Download