af26bff5368152b30f035ee3b33d528f481c42b50958a20b08f137789c21eaf0

Analysis

max time kernel
99s
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
24-11-2022 14:03

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General

Target

邱山、渠道、三株设计图纸（修编版）/三珠中桥/桥梁/三珠中桥修订稿（存�.xls
Size

398KB
MD5

88872cfb888c7b705e4544dccd2c6f27
SHA1

b5bab486be1aebb09dbd8cccf0909eac8313705d
SHA256

278de953d18d422f5b584da254e7a147e04dd348c5ff9f102363285d99976535
SHA512

46bc59942115484aa7a99b23964cd4d49cbb1fffc3b64ed34a7a921f3b34e56c01fd96dc7c95d6e51ef396682757497d418bf4b42f172307c1bf4c261563a903
SSDEEP

1536:xyyylua3fKbKWe8yX5h4HYg+BU4DyjofhuMZ95S9BfRxEb:cu3jC

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

5044 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE
5044	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 5044 wrote to memory of 1960	5044	EXCEL.EXE	splwow64.exe
PID 5044 wrote to memory of 1960	5044	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\邱山、渠道、三株设计图纸（修编版）\三珠中桥\桥梁\三珠中桥修订稿（存�.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5044

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1960

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3440

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/1960-139-0x0000000000000000-mapping.dmp

Download
memory/5044-132-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-133-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-134-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-135-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-136-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-137-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/5044-138-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/5044-141-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-142-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-143-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/5044-144-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download