4f0a5d5aaa620860dcebc0341d6782ebcf39a68d65d88febb5bf48e29ed22f07

General

Target

4f0a5d5aaa620860dcebc0341d6782ebcf39a68d65d88febb5bf48e29ed22f07.xls
Size

105KB
MD5

1f60e295d5ea7925d7169c021222aceb
SHA1

13f745e10a098ca80cc040c12ade5f5fb6ae20a3
SHA256

4f0a5d5aaa620860dcebc0341d6782ebcf39a68d65d88febb5bf48e29ed22f07
SHA512

622bbe0ccc93aff647a1fb2824c1094ab18c56c7faf958bcfe9eb091f2dcbbd337e2998f60e32787097ab2711a63f83c5828a642bd83b927c5838a331610d176
SSDEEP

3072:Ix1gxv7yZmspH7+cclKiscI4ukoRWGN8Jp3yZ7ulWVbrzQ7ITkDZvn1VzUu1qJt5:c1gxv7yZmspH7+cclKiscI4ukoRWGN8y

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	1380	4940	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4348	4940	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2884	4940	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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\C7F65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4940 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\C7F65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE
4940	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4940 wrote to memory of 4788	4940	EXCEL.EXE	splwow64.exe
PID 4940 wrote to memory of 4788	4940	EXCEL.EXE	splwow64.exe
PID 4940 wrote to memory of 1380	4940	EXCEL.EXE	cmd.exe
PID 4940 wrote to memory of 1380	4940	EXCEL.EXE	cmd.exe
PID 4940 wrote to memory of 4348	4940	EXCEL.EXE	cmd.exe
PID 4940 wrote to memory of 4348	4940	EXCEL.EXE	cmd.exe
PID 4940 wrote to memory of 2884	4940	EXCEL.EXE	cmd.exe
PID 4940 wrote to memory of 2884	4940	EXCEL.EXE	cmd.exe
PID 1380 wrote to memory of 3204	1380	cmd.exe	attrib.exe
PID 1380 wrote to memory of 3204	1380	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3204 attrib.exe

pid	process
3204	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\4f0a5d5aaa620860dcebc0341d6782ebcf39a68d65d88febb5bf48e29ed22f07.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4940

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4788

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:1380

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3204

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:4348

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:2884

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:732

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/1380-140-0x0000000000000000-mapping.dmp

Download
memory/2884-142-0x0000000000000000-mapping.dmp

Download
memory/3204-143-0x0000000000000000-mapping.dmp

Download
memory/4348-141-0x0000000000000000-mapping.dmp

Download
memory/4788-139-0x0000000000000000-mapping.dmp

Download
memory/4940-136-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-138-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/4940-137-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/4940-132-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-135-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-134-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-133-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-144-0x0000024F2ED08000-0x0000024F2ED0A000-memory.dmp

Filesize
8KB

Download
memory/4940-145-0x0000024F2ED08000-0x0000024F2ED0A000-memory.dmp

Filesize
8KB

Download
memory/4940-149-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-150-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-148-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4940-147-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads