fce9fe56e2a1eab6d8a20cd4a35e37696c440f88bb16d1d62d5775bd325be529

General

Target

随州市2014年度考试录用公务员拟录用人员公示名单.xls
Size

148KB
MD5

cf8ef7becb2b29593ddd35a5259b8065
SHA1

7bf378f8f80c0ae5483d441b9a271564659305af
SHA256

27f8893f8755016028b006c82a826f05c5e5186aef972b0fe1487dbac300417c
SHA512

93578e0e665ff15a04e304b04079a8b38a2241d7f7960272950e4dd21576026e4aad0aba9369a25e29bfb75d495419ec8f859e057749a98b42f09a7954c03c74
SSDEEP

1536:/eEoWTJ6dTPnKrMUClgsfO/8Dg4Z956o2lVsxH6liOB3bi+2jcc0lbxOvTgZ/uIv:PlVsxH6liOBT2jcc0lbxOrHISaS2tD

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	396	2496	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3912	2496	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3820	2496	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\EAF65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2496 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\EAF65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2496 wrote to memory of 396	2496	EXCEL.EXE	cmd.exe
PID 2496 wrote to memory of 396	2496	EXCEL.EXE	cmd.exe
PID 2496 wrote to memory of 3912	2496	EXCEL.EXE	cmd.exe
PID 2496 wrote to memory of 3912	2496	EXCEL.EXE	cmd.exe
PID 2496 wrote to memory of 3820	2496	EXCEL.EXE	cmd.exe
PID 2496 wrote to memory of 3820	2496	EXCEL.EXE	cmd.exe
PID 396 wrote to memory of 3848	396	cmd.exe	attrib.exe
PID 396 wrote to memory of 3848	396	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3848 attrib.exe

pid	process
3848	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\随州市2014年度考试录用公务员拟录用人员公示名单.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:2496

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:396

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3848

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:3912

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:3820

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

Loading Replay Monitor...

Downloads

memory/396-139-0x0000000000000000-mapping.dmp

Download
memory/2496-138-0x00007FFDF4E50000-0x00007FFDF4E60000-memory.dmp

Filesize
64KB

Download
memory/2496-144-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-135-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-136-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-137-0x00007FFDF4E50000-0x00007FFDF4E60000-memory.dmp

Filesize
64KB

Download
memory/2496-132-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-133-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-147-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-145-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-146-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/2496-134-0x00007FFDF6EB0000-0x00007FFDF6EC0000-memory.dmp

Filesize
64KB

Download
memory/3820-141-0x0000000000000000-mapping.dmp

Download
memory/3848-142-0x0000000000000000-mapping.dmp

Download
memory/3912-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads