a0fed738ce1f19af4b4d7f89b09847f2406836ac58b7483bbdd89ec9d85a73d8

General

Target

a0fed738ce1f19af4b4d7f89b09847f2406836ac58b7483bbdd89ec9d85a73d8.xls
Size

252KB
MD5

f7bfaabcb587f2600937af4478ab241a
SHA1

a1bdc9c3688322b2cf59d8c2739968891b227029
SHA256

a0fed738ce1f19af4b4d7f89b09847f2406836ac58b7483bbdd89ec9d85a73d8
SHA512

cddc9ffbd41d738de43f02349978c1af38722a0411dfabad5b9130f9eece8316006de4db3c9062c245fa03da1c65c5bb35714a873b54043c75e9222b7f1b6c96
SSDEEP

6144:uhFqVaxQhjnLUvUOVha2uJDAriSYHxbhTtaXMTLa+ii/:GyhLwa

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	528	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	108	528	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1972	528	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
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar	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
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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

528 EXCEL.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

528 EXCEL.EXE
528 EXCEL.EXE
528 EXCEL.EXE
528 EXCEL.EXE

pid	process
528	EXCEL.EXE

pid	process
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 528 wrote to memory of 980	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 980	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 980	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 980	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 1972	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 1972	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 1972	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 1972	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 108	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 108	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 108	528	EXCEL.EXE	cmd.exe
PID 528 wrote to memory of 108	528	EXCEL.EXE	cmd.exe
PID 980 wrote to memory of 728	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 728	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 728	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 728	980	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

728 attrib.exe

pid	process
728	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\a0fed738ce1f19af4b4d7f89b09847f2406836ac58b7483bbdd89ec9d85a73d8.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:528

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:728

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:108

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:1972

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/108-222-0x0000000000000000-mapping.dmp

Download
memory/528-54-0x000000002FA01000-0x000000002FA04000-memory.dmp

Filesize
12KB

Download
memory/528-55-0x0000000071191000-0x0000000071193000-memory.dmp

Filesize
8KB

Download
memory/528-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/528-57-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download
memory/528-58-0x000000007217D000-0x0000000072188000-memory.dmp

Filesize
44KB

Download
memory/528-59-0x000000007217D000-0x0000000072188000-memory.dmp

Filesize
44KB

Download
memory/528-224-0x000000007217D000-0x0000000072188000-memory.dmp

Filesize
44KB

Download
memory/728-223-0x0000000000000000-mapping.dmp

Download
memory/980-220-0x0000000000000000-mapping.dmp

Download
memory/1972-221-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads