0c5af960bc4653ca9949c0392118192c79fdcfb6dd5deca58a387103568548e8

General

Target

0c5af960bc4653ca9949c0392118192c79fdcfb6dd5deca58a387103568548e8.xls
Size

82KB
MD5

590d1da0cd1807de8ebf0b56bca981b4
SHA1

56dee305846387d517fdaba3d12b64c5f1fdaad3
SHA256

0c5af960bc4653ca9949c0392118192c79fdcfb6dd5deca58a387103568548e8
SHA512

f4d615c3db3c2927ae0942692b9e86eb2dbe79f15fb57b0ccd85434c945a14b654534d46e66d8eeb0c22998ffff3f84604a2735f6a9b7e6d1cf765a3c38d54af
SSDEEP

1536:5KqrxAi4Ee2jcc0lbxOvTgZCIhY7nJdJoOd7cJtXw65YC:A2jcc0lbxOr62AJtXwEYC

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	2900	4388	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3744	4388	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3164	4388	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4388 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE
4388	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4388 wrote to memory of 2900	4388	EXCEL.EXE	cmd.exe
PID 4388 wrote to memory of 2900	4388	EXCEL.EXE	cmd.exe
PID 4388 wrote to memory of 3744	4388	EXCEL.EXE	cmd.exe
PID 4388 wrote to memory of 3744	4388	EXCEL.EXE	cmd.exe
PID 4388 wrote to memory of 3164	4388	EXCEL.EXE	cmd.exe
PID 4388 wrote to memory of 3164	4388	EXCEL.EXE	cmd.exe
PID 2900 wrote to memory of 796	2900	cmd.exe	attrib.exe
PID 2900 wrote to memory of 796	2900	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

796 attrib.exe

pid	process
796	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\0c5af960bc4653ca9949c0392118192c79fdcfb6dd5deca58a387103568548e8.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4388

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:2900

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:796

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:3744

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:3164

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

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Downloads

memory/796-142-0x0000000000000000-mapping.dmp

Download
memory/2900-139-0x0000000000000000-mapping.dmp

Download
memory/3164-141-0x0000000000000000-mapping.dmp

Download
memory/3744-140-0x0000000000000000-mapping.dmp

Download
memory/4388-135-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-137-0x00007FFDBBF80000-0x00007FFDBBF90000-memory.dmp

Filesize
64KB

Download
memory/4388-138-0x00007FFDBBF80000-0x00007FFDBBF90000-memory.dmp

Filesize
64KB

Download
memory/4388-136-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-132-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-134-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-133-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-144-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-145-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-146-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmp

Filesize
64KB

Download
memory/4388-147-0x00007FFDBE670000-0x00007FFDBE680000-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