5b838d9c51ae74156d6b890e1428d448cf4fedb90f156c9210908f899ce20d61

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-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—5 单位工程招标控制价汇总表.xls
Size

85KB
MD5

4e9531c06788a10608ca1453940bb580
SHA1

8a4af8a14a65d724f21e19ea3bebaa0b64659002
SHA256

5427b4f6cced31188039f01a7e12ae4fc48ef7b26bc72bb587f0a749418125fb
SHA512

cbd3b20ecdc4e598e9d6ad3e5716014f45e95c0e67e1f94cd5d3b90f0e9f295263cfe559287b17be164e28aca35dabdb336c55c916024d5fff72ae0302f63928
SSDEEP

1536:BBpDFqWVbrzQ7ITkbMtIh3IA23KkvY7nJdJoOd7cJwXwq0h:eWVbrzQ7ITk4uQnUAJwXw3h

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	1744	544	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1856	544	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1852	544	cmd.exe	29

Deletes itself 1 IoCs

pid	Process
544	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\E1A67F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
544	EXCEL.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
544	EXCEL.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
544	EXCEL.EXE
544	EXCEL.EXE
544	EXCEL.EXE
544	EXCEL.EXE
544	EXCEL.EXE
544	EXCEL.EXE
544	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 1852	544	EXCEL.EXE	30
PID 544 wrote to memory of 1852	544	EXCEL.EXE	30
PID 544 wrote to memory of 1852	544	EXCEL.EXE	30
PID 544 wrote to memory of 1852	544	EXCEL.EXE	30
PID 544 wrote to memory of 1856	544	EXCEL.EXE	31
PID 544 wrote to memory of 1856	544	EXCEL.EXE	31
PID 544 wrote to memory of 1856	544	EXCEL.EXE	31
PID 544 wrote to memory of 1856	544	EXCEL.EXE	31
PID 544 wrote to memory of 1744	544	EXCEL.EXE	33
PID 544 wrote to memory of 1744	544	EXCEL.EXE	33
PID 544 wrote to memory of 1744	544	EXCEL.EXE	33
PID 544 wrote to memory of 1744	544	EXCEL.EXE	33
PID 1852 wrote to memory of 1064	1852	cmd.exe	36
PID 1852 wrote to memory of 1064	1852	cmd.exe	36
PID 1852 wrote to memory of 1064	1852	cmd.exe	36
PID 1852 wrote to memory of 1064	1852	cmd.exe	36

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1064	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—5 单位工程招标控制价汇总表.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:544
- 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:1852
- - 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:1064
- 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:1856
- 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:1744

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/544-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/544-1-0x0000000071D4D000-0x0000000071D58000-memory.dmp

Filesize
44KB

Download
memory/544-2-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-6-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-28-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-4-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-3-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-9-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-8-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-7-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-5-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-76-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-12-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-10-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-15-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-16-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-17-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-14-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-13-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-20-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-18-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-19-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-54-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-90-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

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memory/544-41-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-30-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-29-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-26-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-27-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-25-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-23-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-24-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-22-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-21-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-331-0x0000000071D4D000-0x0000000071D58000-memory.dmp

Filesize
44KB

Download
memory/544-332-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-333-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-334-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/544-335-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download