8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76

General

Target

8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76.xls
Size

100KB
MD5

eeef638de5651e59c5dc24836f37306c
SHA1

be14cdd2fde6dd1165204a81f19b20783e2a4db7
SHA256

8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76
SHA512

9b9d9ddad6d987787b35fd481bef6ea477fa8b80691fecb180b0bf9bd345b3cfcde9bba21f1487a0aeabaa3bb12084d963e45c0a7f2a2392105bc29ec6be1a90
SSDEEP

1536:go777VmRqV+4w75Z5sKJQHnwZ95J6eoJLWVbrzJxE6HD7ITkR62lIM88STJtXwRe:V5zWVbrzJ6KD7ITk9njiJtXwL5kacsG

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	4204	2016	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5076	2016	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3340	2016	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2016 EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2016 wrote to memory of 4204	2016	EXCEL.EXE	cmd.exe
PID 2016 wrote to memory of 4204	2016	EXCEL.EXE	cmd.exe
PID 2016 wrote to memory of 5076	2016	EXCEL.EXE	cmd.exe
PID 2016 wrote to memory of 5076	2016	EXCEL.EXE	cmd.exe
PID 2016 wrote to memory of 3340	2016	EXCEL.EXE	cmd.exe
PID 2016 wrote to memory of 3340	2016	EXCEL.EXE	cmd.exe
PID 4204 wrote to memory of 4472	4204	cmd.exe	attrib.exe
PID 4204 wrote to memory of 4472	4204	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4472 attrib.exe

pid	process
4472	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\8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016

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:4204

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4472

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:5076

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:3340

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\5cbf5b0e9d6f47b291ace3a876c81409 /t 3068 /p 2016
1⤵
PID:1092

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/2016-144-0x000001FF754C1000-0x000001FF754C3000-memory.dmp

Filesize
8KB

Download
memory/2016-136-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-149-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-135-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-148-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-137-0x00007FF7E78A0000-0x00007FF7E78B0000-memory.dmp

Filesize
64KB

Download
memory/2016-138-0x00007FF7E78A0000-0x00007FF7E78B0000-memory.dmp

Filesize
64KB

Download
memory/2016-142-0x000001FF754C1000-0x000001FF754C3000-memory.dmp

Filesize
8KB

Download
memory/2016-134-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-133-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-147-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-146-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/2016-132-0x00007FF7EA050000-0x00007FF7EA060000-memory.dmp

Filesize
64KB

Download
memory/3340-141-0x0000000000000000-mapping.dmp

Download
memory/4204-139-0x0000000000000000-mapping.dmp

Download
memory/4472-143-0x0000000000000000-mapping.dmp

Download
memory/5076-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads