c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3

General

Target

c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3.xls
Size

197KB
MD5

f6b78f6678531ba218d087df844c7f2a
SHA1

d0fc1ae76f794175c4e1e3c10d96ff638e0fb9e7
SHA256

c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3
SHA512

5b743752e03e4cedd31760c997046cad97ed5e2a8c3f8b61ddce5a7c056aa776370c833fdab646689e3b9461eb5558abd4ac5ac82bfb289776b958a5d04ebcd6
SSDEEP

3072:QQ6o/lbBt0HOho7iaHZbj0ZAZI03b4MJnClmn62jcc0lbxOrIIEJtXwKH:VOJQKy

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	1772	1412	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1960	1412	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4984	1412	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\1E985E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1412 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\1E985E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE
1412	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1412 wrote to memory of 1772	1412	EXCEL.EXE	cmd.exe
PID 1412 wrote to memory of 1772	1412	EXCEL.EXE	cmd.exe
PID 1412 wrote to memory of 1960	1412	EXCEL.EXE	cmd.exe
PID 1412 wrote to memory of 1960	1412	EXCEL.EXE	cmd.exe
PID 1412 wrote to memory of 4984	1412	EXCEL.EXE	cmd.exe
PID 1412 wrote to memory of 4984	1412	EXCEL.EXE	cmd.exe
PID 1772 wrote to memory of 1308	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 1308	1772	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1308 attrib.exe

pid	process
1308	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\c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3.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:1412

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:1772

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1308

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:1960

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:4984

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\6a36a661084a4c398e703cbf5f59bc11 /t 2656 /p 1412
1⤵
PID:4608

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/1308-142-0x0000000000000000-mapping.dmp

Download
memory/1412-138-0x00007FF8F9330000-0x00007FF8F9340000-memory.dmp

Filesize
64KB

Download
memory/1412-144-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-135-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-136-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-137-0x00007FF8F9330000-0x00007FF8F9340000-memory.dmp

Filesize
64KB

Download
memory/1412-132-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-147-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-146-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-145-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-133-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1412-134-0x00007FF8FBB30000-0x00007FF8FBB40000-memory.dmp

Filesize
64KB

Download
memory/1772-139-0x0000000000000000-mapping.dmp

Download
memory/1960-140-0x0000000000000000-mapping.dmp

Download
memory/4984-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads