b3de07df532adb539a81002eae40f60546e3534b6a2732997f05f6d1dbe33ca0

General

Target

b3de07df532adb539a81002eae40f60546e3534b6a2732997f05f6d1dbe33ca0.xls
Size

85KB
MD5

d8300f621723ac7f581b7ae76a779e9a
SHA1

8e4ec65e7b47cfb2bb75fc136af11eac726c6cdb
SHA256

b3de07df532adb539a81002eae40f60546e3534b6a2732997f05f6d1dbe33ca0
SHA512

61a3113b90234fb576fc62ee74afb36b90ffdfb7d98c14de2a572d208c89a997e2a74d6ac6a7b522d9078b9d0a538aa8ceae3f7b8f7ebf968cce2f63a02e2017
SSDEEP

1536:LPPP7HY3jsWWVbkzQ7ITkygzA2KcCOU/WwF1Mo4I:2WVbkzQ7ITky0XDWl4I

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3672	2928	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2896	2928	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3856	2928	cmd.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\74085E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2928 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2928 EXCEL.EXE
2928 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\74085E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE
2928	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2928 wrote to memory of 3672	2928	EXCEL.EXE	cmd.exe
PID 2928 wrote to memory of 3672	2928	EXCEL.EXE	cmd.exe
PID 2928 wrote to memory of 3856	2928	EXCEL.EXE	cmd.exe
PID 2928 wrote to memory of 3856	2928	EXCEL.EXE	cmd.exe
PID 2928 wrote to memory of 2896	2928	EXCEL.EXE	cmd.exe
PID 2928 wrote to memory of 2896	2928	EXCEL.EXE	cmd.exe
PID 3672 wrote to memory of 4252	3672	cmd.exe	attrib.exe
PID 3672 wrote to memory of 4252	3672	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4252 attrib.exe

pid	process
4252	attrib.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b3de07df532adb539a81002eae40f60546e3534b6a2732997f05f6d1dbe33ca0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2928

C:\Windows\system32\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:3672

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4252

C:\Windows\system32\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:2896

C:\Windows\system32\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:3856

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2896-141-0x0000000000000000-mapping.dmp

Download
memory/2928-135-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-145-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-132-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-136-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-137-0x00007FFD54480000-0x00007FFD54490000-memory.dmp

Filesize
64KB

Download
memory/2928-138-0x00007FFD54480000-0x00007FFD54490000-memory.dmp

Filesize
64KB

Download
memory/2928-147-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-144-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-134-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-146-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/2928-133-0x00007FFD56A30000-0x00007FFD56A40000-memory.dmp

Filesize
64KB

Download
memory/3672-139-0x0000000000000000-mapping.dmp

Download
memory/3856-140-0x0000000000000000-mapping.dmp

Download
memory/4252-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads