446eaec7da3287997f51aebe25cfab14114b179b1ec2b21d9a1f65040629f86e

General

Target

446eaec7da3287997f51aebe25cfab14114b179b1ec2b21d9a1f65040629f86e.xls
Size

93KB
MD5

9444b1112cc6395a7783e73dcd1ccf77
SHA1

bea4e279f9226d31a6f8befd330fd4ee78eb0968
SHA256

446eaec7da3287997f51aebe25cfab14114b179b1ec2b21d9a1f65040629f86e
SHA512

3a2d7fda586e608399ca6d1d7cb1c3733b7fdc4e84688c16537b97e39a53a9c25e24648ee8b3df54be2e2e8e886be59ae90e0c36da4664fa7b21649518f81066
SSDEEP

1536:WlJJJUediaLJ67grADfMLH21RZ95P717WVbrzQ7PKOtgZoTkR62luIhY7nJdJoOR:Z/BWVbrzQ7HyyTk9V2AJaXw25kAVh

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	1880	2008	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	436	2008	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1208	2008	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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2008 EXCEL.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

2008 EXCEL.EXE
2008 EXCEL.EXE
2008 EXCEL.EXE
2008 EXCEL.EXE

pid	process
2008	EXCEL.EXE

pid	process
2008	EXCEL.EXE
2008	EXCEL.EXE
2008	EXCEL.EXE
2008	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2008 wrote to memory of 1880	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1880	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1880	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1880	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 436	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 436	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 436	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 436	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1208	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1208	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1208	2008	EXCEL.EXE	cmd.exe
PID 2008 wrote to memory of 1208	2008	EXCEL.EXE	cmd.exe
PID 1880 wrote to memory of 276	1880	cmd.exe	attrib.exe
PID 1880 wrote to memory of 276	1880	cmd.exe	attrib.exe
PID 1880 wrote to memory of 276	1880	cmd.exe	attrib.exe
PID 1880 wrote to memory of 276	1880	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

276 attrib.exe

pid	process
276	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\446eaec7da3287997f51aebe25cfab14114b179b1ec2b21d9a1f65040629f86e.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008

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:1880

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:276

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:436

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:1208

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/276-222-0x0000000000000000-mapping.dmp

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memory/436-220-0x0000000000000000-mapping.dmp

Download
memory/1208-221-0x0000000000000000-mapping.dmp

Download
memory/1880-219-0x0000000000000000-mapping.dmp

Download
memory/2008-54-0x000000002F1D1000-0x000000002F1D4000-memory.dmp

Filesize
12KB

Download
memory/2008-55-0x0000000070F81000-0x0000000070F83000-memory.dmp

Filesize
8KB

Download
memory/2008-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2008-57-0x0000000071F6D000-0x0000000071F78000-memory.dmp

Filesize
44KB

Download
memory/2008-58-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download
memory/2008-223-0x0000000071F6D000-0x0000000071F78000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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