fb32dc19a45870bf171c1d45da207408e2627f64a49300dc12ba851fcdabc17b

Analysis

max time kernel
167s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:22

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General

Target

产品审核范例1/RD2234B产品审核报告.xls
Size

1016KB
MD5

b0cf4a55167c512d107493aa57552185
SHA1

3d792d4bf3afb2093034c70f3b3189b5e9b93561
SHA256

0581b281742f5d24d6259a929e6f70017f786b3a39547dc50884efb57b95ccad
SHA512

945b76184d200f43c640d89af17951fd9c663abda82bedc0fa65dbbd67d1f96b7d742dd88a9aee9a09b21332a35486100e55af7c31bcf0ed0d7819e11febcfa4
SSDEEP

24576:fkdDvmC9G4upIwi7/SQbkeCD7Sg7CsZjQLD:fODuKllwiDwzfEL

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

2864 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2864 wrote to memory of 2284	2864	EXCEL.EXE	splwow64.exe
PID 2864 wrote to memory of 2284	2864	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\产品审核范例1\RD2234B产品审核报告.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2864

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:2284

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4540

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/2284-139-0x0000000000000000-mapping.dmp

Download
memory/2864-132-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmp

Filesize
64KB

Download
memory/2864-133-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmp

Filesize
64KB

Download
memory/2864-134-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmp

Filesize
64KB

Download
memory/2864-135-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmp

Filesize
64KB

Download
memory/2864-136-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmp

Filesize
64KB

Download
memory/2864-137-0x00007FFCDB720000-0x00007FFCDB730000-memory.dmp

Filesize
64KB

Download
memory/2864-138-0x00007FFCDB720000-0x00007FFCDB730000-memory.dmp

Filesize
64KB

Download