5b838d9c51ae74156d6b890e1428d448cf4fedb90f156c9210908f899ce20d61

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/03/2025, 11:50

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General

Target

南沙万顷沙镇水窦工程量清单/南沙万顷沙镇水窦/11#水窦/表3—6 分部分项工程计价表.xls
Size

81KB
MD5

ef6c10fbe4aa129c5367ab7d7934dee3
SHA1

e89357c4c57eeb99735531ee77d7d738f0de3e00
SHA256

4023ff7e11e473df94f16e6aa46ed18a1a81f66046f317af9e7f79dccbf960c7
SHA512

924b923c86806fdc1b1044e954973ce2df0226eb4c39796f92894f4b9f57241d72f8dd01f240e6f9411b273de8b2e88e6861d61485c4884bf307f70f89e6df13
SSDEEP

1536:BRIKgHKB2jcc0lbxOqTgZuIhY7nJdJoOd7cJtXwZUv:l2jcc0lbxOK22AJtXwev

Score

10^/10

defense_evasion discovery

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1868	2668	cmd.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	284	2668	cmd.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1832	2668	cmd.exe	30

Deletes itself 1 IoCs

pid	Process
2668	EXCEL.EXE

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\南沙万顷沙镇水窦工程量清单\南沙万顷沙镇水窦\11#水窦\63F67F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2668	EXCEL.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2668	EXCEL.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 1868	2668	EXCEL.EXE	31
PID 2668 wrote to memory of 1868	2668	EXCEL.EXE	31
PID 2668 wrote to memory of 1868	2668	EXCEL.EXE	31
PID 2668 wrote to memory of 1868	2668	EXCEL.EXE	31
PID 2668 wrote to memory of 1832	2668	EXCEL.EXE	32
PID 2668 wrote to memory of 1832	2668	EXCEL.EXE	32
PID 2668 wrote to memory of 1832	2668	EXCEL.EXE	32
PID 2668 wrote to memory of 1832	2668	EXCEL.EXE	32
PID 2668 wrote to memory of 284	2668	EXCEL.EXE	34
PID 2668 wrote to memory of 284	2668	EXCEL.EXE	34
PID 2668 wrote to memory of 284	2668	EXCEL.EXE	34
PID 2668 wrote to memory of 284	2668	EXCEL.EXE	34
PID 1868 wrote to memory of 976	1868	cmd.exe	37
PID 1868 wrote to memory of 976	1868	cmd.exe	37
PID 1868 wrote to memory of 976	1868	cmd.exe	37
PID 1868 wrote to memory of 976	1868	cmd.exe	37

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
976	attrib.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\南沙万顷沙镇水窦工程量清单\南沙万顷沙镇水窦\11#水窦\表3—6 分部分项工程计价表.xls"
1⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\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
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:976
- C:\Windows\SysWOW64\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
  - System Location Discovery: System Language Discovery
  PID:1832
- C:\Windows\SysWOW64\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
  - System Location Discovery: System Language Discovery
  PID:284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2668-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2668-1-0x00000000723FD000-0x0000000072408000-memory.dmp

Filesize
44KB

Download
memory/2668-2-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-12-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-18-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-5-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-4-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-3-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-25-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-6-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-77-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-76-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-31-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-30-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-29-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-28-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-27-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-26-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-24-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-23-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-22-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-21-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-19-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-20-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-17-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-100-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-16-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-14-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-13-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-11-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-10-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-9-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-8-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-7-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-75-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download
memory/2668-331-0x00000000723FD000-0x0000000072408000-memory.dmp

Filesize
44KB

Download
memory/2668-332-0x00000000001F0000-0x00000000002F0000-memory.dmp

Filesize
1024KB

Download