fb4ff88dd49b4b72942ff43884d8c30d82aa4b1f4978f472787cd08808598764

General

Target

fb4ff88dd49b4b72942ff43884d8c30d82aa4b1f4978f472787cd08808598764.xls
Size

86KB
MD5

551fe7ec7c022b14e4db803fbd6b1118
SHA1

cf329a44ca576e5b79c6a2df6bcbe0c05bb97a32
SHA256

fb4ff88dd49b4b72942ff43884d8c30d82aa4b1f4978f472787cd08808598764
SHA512

84637ba5081e896f891c8da75bfb11c4ff812664b6bf7202856c468fa721d26bbe7e8c46257097bb4829f9c1fa19ce5885d578d6674624de812e88d494126696
SSDEEP

1536:5AAAsAU52lXbjSytC2BhYS6D8UYtQ41gxv7yZmspH7+cclKiEZClsUI4ukoRWGNF:eT1gxv7yZmspH7+cclKisUI4ukoRWGNF

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	544	716	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1064	716	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	452	716	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 (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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
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
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 (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
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
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\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

716 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

716 EXCEL.EXE
716 EXCEL.EXE
716 EXCEL.EXE

pid	process
716	EXCEL.EXE

pid	process
716	EXCEL.EXE
716	EXCEL.EXE
716	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 716 wrote to memory of 544	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 544	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 544	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 544	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 1064	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 1064	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 1064	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 1064	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 452	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 452	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 452	716	EXCEL.EXE	cmd.exe
PID 716 wrote to memory of 452	716	EXCEL.EXE	cmd.exe
PID 544 wrote to memory of 1984	544	cmd.exe	attrib.exe
PID 544 wrote to memory of 1984	544	cmd.exe	attrib.exe
PID 544 wrote to memory of 1984	544	cmd.exe	attrib.exe
PID 544 wrote to memory of 1984	544	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1984 attrib.exe

pid	process
1984	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\fb4ff88dd49b4b72942ff43884d8c30d82aa4b1f4978f472787cd08808598764.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:716

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:544

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1984

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:1064

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:452

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/452-221-0x0000000000000000-mapping.dmp

Download
memory/544-219-0x0000000000000000-mapping.dmp

Download
memory/716-54-0x000000002F721000-0x000000002F724000-memory.dmp

Filesize
12KB

Download
memory/716-55-0x00000000711E1000-0x00000000711E3000-memory.dmp

Filesize
8KB

Download
memory/716-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/716-57-0x00000000721CD000-0x00000000721D8000-memory.dmp

Filesize
44KB

Download
memory/716-58-0x0000000074E61000-0x0000000074E63000-memory.dmp

Filesize
8KB

Download
memory/716-223-0x00000000721CD000-0x00000000721D8000-memory.dmp

Filesize
44KB

Download
memory/1064-220-0x0000000000000000-mapping.dmp

Download
memory/1984-222-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads