dbaf68e53f1b4437277935031a33a4c6c8b6456c52c0379f992a906a9256c499

Analysis

max time kernel
99s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2022, 13:52

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
dbaf68e53f1b4437277935031a33a4c6c8b6456c52c0379f992a906a9256c499.xls
Size 1.4MB
Sample220805-q6d64sbbbq
SHA256 dbaf68e53f1b4437277935031a33a4c6c8b6456c52c0379f992a906a9256c499
MD5 5131f418189ede0e8ebff6bf4395b2a3
SHA1 e32b7e32784c82a6dc0cbf865251730ba6e4bdd6
SHA512 7718cafff0b056f4617abc97f0a9273cfb251911a3c1fe3694339759655a7e2f0b4cce7f7e4fc1a33e474ba4b63d623981d0295c8bb5d80da02b14447ac277a9
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3504	WindowsSecurity.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2060	3504	WerFault.exe	91

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

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

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3732	schtasks.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
4616	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3504	WindowsSecurity.exe
3504	WindowsSecurity.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4616	EXCEL.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE
4616	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 3504	4616	EXCEL.EXE	91
PID 4616 wrote to memory of 3504	4616	EXCEL.EXE	91
PID 4616 wrote to memory of 3504	4616	EXCEL.EXE	91
PID 3504 wrote to memory of 2384	3504	WindowsSecurity.exe	101
PID 3504 wrote to memory of 2384	3504	WindowsSecurity.exe	101
PID 3504 wrote to memory of 2384	3504	WindowsSecurity.exe	101
PID 2384 wrote to memory of 3732	2384	cmd.exe	102
PID 2384 wrote to memory of 3732	2384	cmd.exe	102
PID 2384 wrote to memory of 3732	2384	cmd.exe	102

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\dbaf68e53f1b4437277935031a33a4c6c8b6456c52c0379f992a906a9256c499.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe
  C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c schtasks /create /sc daily /tn WindowsSecurityPatch /tr C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe /st 11:00 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2384
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc daily /tn WindowsSecurityPatch /tr C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe /st 11:00 /f
      4⤵
      Creates scheduled task(s)
      PID:3732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 860
    3⤵
    - Program crash
    PID:2060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3504 -ip 3504
1⤵
PID:3496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

WindowsSecurity.exe

Path C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe
Size 659KB
SHA256 e9d550d9a18dd0efee23eb189ba79917d39e5c33fc1dfac662248868c260f073
MD5 04f7ee1aa5e29d2f2d4ea6b539d20709
SHA1 f72d2f06ee7aeaa9180e9ba3132192332dcc1bf8
SHA512 d317a7a15165ebb5f04d2a77cb26359afda8a53e3a998c79fc31984581d3fde676b8c017fe80d59a1592ede7e000a48b9733c193bd0d35546ac35cb5346c81c8
SSDEEP 12288:Gz8Jjl7QuKXDpHyONt5geHO4Gfcju+ot5Sa/BJO6M6H2UG/cKMg5yyeqdXeRymh:Gzux7QVXgiTot5SCPO6WMg5yvQkB
MD5 SHA1 SHA512 SSDEEP

Submit Download

WindowsSecurity.exe

Path C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe
Size 659KB
SHA256 e9d550d9a18dd0efee23eb189ba79917d39e5c33fc1dfac662248868c260f073
MD5 04f7ee1aa5e29d2f2d4ea6b539d20709
SHA1 f72d2f06ee7aeaa9180e9ba3132192332dcc1bf8
SHA512 d317a7a15165ebb5f04d2a77cb26359afda8a53e3a998c79fc31984581d3fde676b8c017fe80d59a1592ede7e000a48b9733c193bd0d35546ac35cb5346c81c8
SSDEEP 12288:Gz8Jjl7QuKXDpHyONt5geHO4Gfcju+ot5Sa/BJO6M6H2UG/cKMg5yyeqdXeRymh:Gzux7QVXgiTot5SCPO6WMg5yvQkB
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4616-135-0x00007FF978CB0000-0x00007FF978CC0000-memory.dmp

Download

memory/4616-136-0x00007FF978CB0000-0x00007FF978CC0000-memory.dmp

Download

memory/4616-137-0x000002DC333A0000-0x000002DC333A4000-memory.dmp

Download

memory/4616-134-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-133-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-132-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-131-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-130-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-144-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-145-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-146-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download

memory/4616-147-0x00007FF97B5B0000-0x00007FF97B5C0000-memory.dmp

Download