7235dd0917d213bb7c11e38c88b3b0ae2bfadfa9a40fe4dc4397bd7f43421fc3

General

Target

控制价/如东县岔河镇古坝小学教学楼新建工程-土建.xls
Size

185KB
MD5

9a67a32b8de92fffa5c00a570c64558a
SHA1

1d92473d39544f79fd3dd62375b63cbfa47850de
SHA256

8fca49370c4d1f986e6b1850748d18182a879c05f5bc709800ea3a02a4ccf992
SHA512

b2658a4fe2195b48efec092f2f6c633a9a79629c98f7b7107e1b1636698262eb9a1bc899c86b1a786a1e33bb02e8de0c5484a62eae462f11c3a0685f254f80fe
SSDEEP

3072:eF+HEK6EIJiRLHJ+O01uWVbh2zQ7ITk9pxJtXwkv42Q:fHD7G

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	3424	4696	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5068	4696	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5032	4696	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\控制价\12085E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4696 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\控制价\12085E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE
4696	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4696 wrote to memory of 3424	4696	EXCEL.EXE	cmd.exe
PID 4696 wrote to memory of 3424	4696	EXCEL.EXE	cmd.exe
PID 4696 wrote to memory of 5068	4696	EXCEL.EXE	cmd.exe
PID 4696 wrote to memory of 5068	4696	EXCEL.EXE	cmd.exe
PID 4696 wrote to memory of 5032	4696	EXCEL.EXE	cmd.exe
PID 4696 wrote to memory of 5032	4696	EXCEL.EXE	cmd.exe
PID 3424 wrote to memory of 1780	3424	cmd.exe	attrib.exe
PID 3424 wrote to memory of 1780	3424	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1780 attrib.exe

pid	process
1780	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\控制价\如东县岔河镇古坝小学教学楼新建工程-土建.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:4696

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:3424

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1780

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:5068

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:5032

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1780-142-0x0000000000000000-mapping.dmp

Download
memory/3424-139-0x0000000000000000-mapping.dmp

Download
memory/4696-138-0x00007FF88FE50000-0x00007FF88FE60000-memory.dmp

Filesize
64KB

Download
memory/4696-135-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-136-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-137-0x00007FF88FE50000-0x00007FF88FE60000-memory.dmp

Filesize
64KB

Download
memory/4696-132-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-134-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-133-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-144-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-145-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-147-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/4696-146-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/5032-141-0x0000000000000000-mapping.dmp

Download
memory/5068-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads