d737d75014ab76dcb324d2d090200e0609fc5b056a66a170f86c3b7eeb327f6c

Analysis

max time kernel
173s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 03:09

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General

Target

清单表/中国工商银行股份有限公司阳江分行营业综合用房及地下停车场基坑.xls
Size

133KB
MD5

5dc23c1bb522f648a3378927810144f9
SHA1

63bc0c9254d171c58112b1ddc68ada977adc4492
SHA256

43d4bb7a5498ca535c4ae3daedf83858812b87bae3ad8e63fd616170f53fda4c
SHA512

5d7e7d733799d3df9bb142ae490d9a2be73eb332293ec7dbbd405b7b5d105a3cd8095e1c290aea83ca5557895339a28b51b4177dd6ea05d811b22ce8812ab42f
SSDEEP

1536:NpbrbuT5D8JJJ2ARaTraw83iU2jcc0lbxOvTgZ80I/cJtXwPvS:uAN2jcc0lbxOrwIEJtXwnS

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.execmd.execmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2364	580	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4468	580	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4356	580	cmd.exe	EXCEL.EXE

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\清单表\71075E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

580 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\清单表\71075E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE
580	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 580 wrote to memory of 2364	580	EXCEL.EXE	cmd.exe
PID 580 wrote to memory of 2364	580	EXCEL.EXE	cmd.exe
PID 580 wrote to memory of 4468	580	EXCEL.EXE	cmd.exe
PID 580 wrote to memory of 4468	580	EXCEL.EXE	cmd.exe
PID 580 wrote to memory of 4356	580	EXCEL.EXE	cmd.exe
PID 580 wrote to memory of 4356	580	EXCEL.EXE	cmd.exe
PID 2364 wrote to memory of 108	2364	cmd.exe	attrib.exe
PID 2364 wrote to memory of 108	2364	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

108 attrib.exe

pid	process
108	attrib.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\清单表\中国工商银行股份有限公司阳江分行营业综合用房及地下停车场基坑.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:580
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:108
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:4468
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:4356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

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/108-142-0x0000000000000000-mapping.dmp

Download
memory/580-138-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/580-144-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-135-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-136-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-137-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/580-132-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-147-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-146-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-145-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-133-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/580-134-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2364-139-0x0000000000000000-mapping.dmp

Download
memory/4356-141-0x0000000000000000-mapping.dmp

Download
memory/4468-140-0x0000000000000000-mapping.dmp

Download