d1f1a53a394dd70f4f876590680b80f08630648029072706e3d67b8035cfe601

Analysis

max time kernel
104s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:26

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General

Target

d1f1a53a394dd70f4f876590680b80f08630648029072706e3d67b8035cfe601.xls
Size

16KB
MD5

8364710e416dbad29ddf726db666bcdd
SHA1

a89f0867489e2727962cb1457562d733d5511372
SHA256

d1f1a53a394dd70f4f876590680b80f08630648029072706e3d67b8035cfe601
SHA512

105dba4a89782b825caa69c2cfe02266f5a7ea5fefe313117419052992f289096885b0316b45bac8addfcb7f470c6ead28bc5cb0e1c4badf77c748d4ec328f87
SSDEEP

384:7xxrSYa+Ex3LNrIjwgt8MxVFfDA68NA9xZ7Q/AN74dOQGicyoqiOr6VasbOK2WNj:7xxrSYa+Ex3LNrIjwgt8MxVF7G6VakOn

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

5036 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE
5036	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 5036 wrote to memory of 2184	5036	EXCEL.EXE	splwow64.exe
PID 5036 wrote to memory of 2184	5036	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\d1f1a53a394dd70f4f876590680b80f08630648029072706e3d67b8035cfe601.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5036

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:2184

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2184-139-0x0000000000000000-mapping.dmp

Download
memory/5036-132-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-133-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-134-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-135-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-136-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-137-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/5036-138-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/5036-141-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-142-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-143-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download
memory/5036-144-0x00007FFF1A650000-0x00007FFF1A660000-memory.dmp

Filesize
64KB

Download