fb3351810c7b2f776cf8c7bc9a98836cc7fe89c6a1197e5c24bdad21b7eeb08e

General

Target

fb3351810c7b2f776cf8c7bc9a98836cc7fe89c6a1197e5c24bdad21b7eeb08e.xls
Size

214KB
MD5

0dfe9e30eee8d65f46754dfaf9b0ab03
SHA1

9a549d0d446f03f2e2bc2de8484efbf61d49089b
SHA256

fb3351810c7b2f776cf8c7bc9a98836cc7fe89c6a1197e5c24bdad21b7eeb08e
SHA512

b4476133a07531ef0c24b44b7c97284b0b6dc35b0e74106b098f29b20628a1666e00afdbf10713a3e843375405f90832673ca9ed90c8c0fdd47980f30695f70c
SSDEEP

3072:rQUJBhwk97bur8yhwc9CpWVbrzQ7ITkIW1uDamLUV:EUCIU3V6

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	4564	1836	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4984	1836	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2668	1836	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 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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\82F65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1836 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\82F65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE
1836	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1836 wrote to memory of 4564	1836	EXCEL.EXE	cmd.exe
PID 1836 wrote to memory of 4564	1836	EXCEL.EXE	cmd.exe
PID 1836 wrote to memory of 4984	1836	EXCEL.EXE	cmd.exe
PID 1836 wrote to memory of 4984	1836	EXCEL.EXE	cmd.exe
PID 1836 wrote to memory of 2668	1836	EXCEL.EXE	cmd.exe
PID 1836 wrote to memory of 2668	1836	EXCEL.EXE	cmd.exe
PID 4564 wrote to memory of 4536	4564	cmd.exe	attrib.exe
PID 4564 wrote to memory of 4536	4564	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4536 attrib.exe

pid	process
4536	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\fb3351810c7b2f776cf8c7bc9a98836cc7fe89c6a1197e5c24bdad21b7eeb08e.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:1836

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:4564

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4536

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:4984

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:2668

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/1836-138-0x00007FFC2FA10000-0x00007FFC2FA20000-memory.dmp

Filesize
64KB

Download
memory/1836-145-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-134-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-135-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-136-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-137-0x00007FFC2FA10000-0x00007FFC2FA20000-memory.dmp

Filesize
64KB

Download
memory/1836-133-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-147-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-132-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-146-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/1836-144-0x00007FFC32230000-0x00007FFC32240000-memory.dmp

Filesize
64KB

Download
memory/2668-141-0x0000000000000000-mapping.dmp

Download
memory/4536-142-0x0000000000000000-mapping.dmp

Download
memory/4564-139-0x0000000000000000-mapping.dmp

Download
memory/4984-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads