37ad1a49dd4702aa040cd51ab984ca3bd90f4477d3b6496a84b27784d1a3a905

General

Target

37ad1a49dd4702aa040cd51ab984ca3bd90f4477d3b6496a84b27784d1a3a905.xls
Size

257KB
MD5

8f5ba99294572fddd07c4ee6b811bd98
SHA1

f45529054a06d3701457f3eb4f8dca227ef8b826
SHA256

37ad1a49dd4702aa040cd51ab984ca3bd90f4477d3b6496a84b27784d1a3a905
SHA512

0c6eef0250b05962dc1ca70c0bc60101332619b071403b2dfc7c28752e0ba2e2d84191563be65f648aea73f603e1fa50ab4ad5ba9d68b9f61a9e0583bcaa307a
SSDEEP

3072:/0wc82vlAViEiKYH1glo8z9AKU6tjcc0lbxOIoAZb1JtXw9R:Tc82Sde+9VU+iTY

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	980	1372	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1620	1372	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1256	1372	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\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
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\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\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
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1372 EXCEL.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

1372 EXCEL.EXE
1372 EXCEL.EXE
1372 EXCEL.EXE
1372 EXCEL.EXE

pid	process
1372	EXCEL.EXE

pid	process
1372	EXCEL.EXE
1372	EXCEL.EXE
1372	EXCEL.EXE
1372	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1372 wrote to memory of 1824	1372	EXCEL.EXE	splwow64.exe
PID 1372 wrote to memory of 1824	1372	EXCEL.EXE	splwow64.exe
PID 1372 wrote to memory of 1824	1372	EXCEL.EXE	splwow64.exe
PID 1372 wrote to memory of 1824	1372	EXCEL.EXE	splwow64.exe
PID 1372 wrote to memory of 980	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 980	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 980	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 980	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1620	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1620	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1620	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1620	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1256	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1256	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1256	1372	EXCEL.EXE	cmd.exe
PID 1372 wrote to memory of 1256	1372	EXCEL.EXE	cmd.exe
PID 980 wrote to memory of 1104	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 1104	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 1104	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 1104	980	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1104 attrib.exe

pid	process
1104	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\37ad1a49dd4702aa040cd51ab984ca3bd90f4477d3b6496a84b27784d1a3a905.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1372

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1824

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:980

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1104

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:1620

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:1256

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

Replay Monitor

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Downloads

memory/980-68-0x0000000000000000-mapping.dmp

Download
memory/1104-71-0x0000000000000000-mapping.dmp

Download
memory/1256-70-0x0000000000000000-mapping.dmp

Download
memory/1372-63-0x0000000000724000-0x0000000000730000-memory.dmp

Filesize
48KB

Download
memory/1372-67-0x0000000000724000-0x0000000000730000-memory.dmp

Filesize
48KB

Download
memory/1372-59-0x0000000071E5D000-0x0000000071E68000-memory.dmp

Filesize
44KB

Download
memory/1372-72-0x0000000071E5D000-0x0000000071E68000-memory.dmp

Filesize
44KB

Download
memory/1372-55-0x0000000070E71000-0x0000000070E73000-memory.dmp

Filesize
8KB

Download
memory/1372-54-0x000000002FC31000-0x000000002FC34000-memory.dmp

Filesize
12KB

Download
memory/1372-62-0x0000000000724000-0x0000000000730000-memory.dmp

Filesize
48KB

Download
memory/1372-64-0x0000000000724000-0x0000000000730000-memory.dmp

Filesize
48KB

Download
memory/1372-65-0x0000000000724000-0x0000000000730000-memory.dmp

Filesize
48KB

Download
memory/1372-66-0x0000000000724000-0x0000000000730000-memory.dmp

Filesize
48KB

Download
memory/1372-58-0x0000000075071000-0x0000000075073000-memory.dmp

Filesize
8KB

Download
memory/1372-57-0x0000000071E5D000-0x0000000071E68000-memory.dmp

Filesize
44KB

Download
memory/1372-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1620-69-0x0000000000000000-mapping.dmp

Download
memory/1824-61-0x000007FEFB821000-0x000007FEFB823000-memory.dmp

Filesize
8KB

Download
memory/1824-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads