e2ba23e1dec69a1d8b109a37fa13ad36a2d0f0f493d9ae33333058f78c7f04de

Analysis

max time kernel
100s
max time network
140s
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 19:23

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General

Target

产品审核范例1/RD2243A产品审核报告.xls
Size

1.1MB
MD5

afb9dc7baaa6393e036f2a0db376b2a5
SHA1

9d961e53149227bec376a490e40608edd57a5546
SHA256

1bf4e290fad7b2a001709fc376128e68b1559127c1d581592f17f0ccdd687ef7
SHA512

1432a01ce06198eb4d4552ecbfcc01f63ba32c5a8e548b65afc8ae6e06c731676365de71fc8ee13390308da7f0f2be3bab5e39be0ca8fa5f40a6541fc741787f
SSDEEP

24576:SIGq+JjeoZZ8JD+jhFBV+1KqQXpS/YEVclU6N11Py1T:SIGq+jeo7+DMtmKHXqYE2ZN1ST

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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

4916 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4916 wrote to memory of 3524	4916	EXCEL.EXE	splwow64.exe
PID 4916 wrote to memory of 3524	4916	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\RD2243A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:4916

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3524

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3908

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/3524-139-0x0000000000000000-mapping.dmp

Download
memory/4916-132-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-133-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-134-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-135-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-136-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-137-0x00007FFD2D9C0000-0x00007FFD2D9D0000-memory.dmp

Filesize
64KB

Download
memory/4916-138-0x00007FFD2D9C0000-0x00007FFD2D9D0000-memory.dmp

Filesize
64KB

Download
memory/4916-142-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-141-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-143-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-144-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download