ee30cd836329c2da9a0409babf00481912e8612435f215adc4e355bb3bc5c943

General

Target

2013年上学生住宿信息公示/交通运输部住校生意向表.xls
Size

246KB
MD5

c591ed07be8898f0ab488c72ea660a97
SHA1

e57f6fab9a16e3646d428e47e21e4decf4dd9640
SHA256

77e581f9d9191f8951bd420cb8fafed722f3372ff2d8769e664b8426052ae34a
SHA512

fc9efce0ea4ca2b4c5e151b6be812b9bacafe0e894904a8187b6d45249a409b9af5e059d18d469b271bee7e7546be61d881ba631ce850dee5f069c2c0e7aa82c
SSDEEP

3072:16d9cOrhYxL6R4X29mBHb1AURKf7wWVbrE7ITk9SAJtXwY4NZ:16d9cOViHpbRKf7Ww

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1332	524	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1296	524	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	964	524	cmd.exe	EXCEL.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

Processes:

EXCEL.EXE

description ioc process

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

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

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

524 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

524 EXCEL.EXE
524 EXCEL.EXE
524 EXCEL.EXE

pid	process
524	EXCEL.EXE

pid	process
524	EXCEL.EXE
524	EXCEL.EXE
524	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 524 wrote to memory of 1332	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1332	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1332	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1332	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1296	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1296	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1296	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 1296	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 964	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 964	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 964	524	EXCEL.EXE	cmd.exe
PID 524 wrote to memory of 964	524	EXCEL.EXE	cmd.exe
PID 1332 wrote to memory of 812	1332	cmd.exe	attrib.exe
PID 1332 wrote to memory of 812	1332	cmd.exe	attrib.exe
PID 1332 wrote to memory of 812	1332	cmd.exe	attrib.exe
PID 1332 wrote to memory of 812	1332	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

812 attrib.exe

pid	process
812	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\2013年上学生住宿信息公示\交通运输部住校生意向表.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:524

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
- Suspicious use of WriteProcessMemory
PID:1332

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:812

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
PID:1296

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
PID:964

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/524-54-0x000000002F571000-0x000000002F574000-memory.dmp

Filesize
12KB

Download
memory/524-55-0x0000000070EF1000-0x0000000070EF3000-memory.dmp

Filesize
8KB

Download
memory/524-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/524-57-0x0000000071EDD000-0x0000000071EE8000-memory.dmp

Filesize
44KB

Download
memory/524-58-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/524-59-0x0000000071EDD000-0x0000000071EE8000-memory.dmp

Filesize
44KB

Download
memory/524-224-0x0000000071EDD000-0x0000000071EE8000-memory.dmp

Filesize
44KB

Download
memory/812-223-0x0000000000000000-mapping.dmp

Download
memory/964-222-0x0000000000000000-mapping.dmp

Download
memory/1296-221-0x0000000000000000-mapping.dmp

Download
memory/1332-220-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads