1296ca015baa3dfae62d8cd6f6c1c1513fb919201a6c11f3df1474700d57fb26

Resubmissions

14-10-2021 15:17

211014-spccasafhl 10

14-10-2021 15:09

211014-sjvaxshhh2 8

Analysis

max time kernel
141s
max time network
146s
platform
windows10_x64
resource
win10-de-20210920
submitted
14-10-2021 15:09

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Report Analysis Logs

General

Target

Bill_PYWTF0.xlsb
Size

264KB
MD5

29be144375ee1609c2c1fd63ae2ff514
SHA1

f37a8d5da9424bd916ed1c572b15173b5f430dd2
SHA256

1296ca015baa3dfae62d8cd6f6c1c1513fb919201a6c11f3df1474700d57fb26
SHA512

7873fffbc179dc3e8b415b72c2c3b736c7f4164e1a8a33c6d38cae5902466059f2fe50adf9ff0f2bba8411d373ceca02a950df9fd263624ab03014cf9879d752

Score

1^/10

Malware Config

Signatures

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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4264 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4264 EXCEL.EXE
4264 EXCEL.EXE

Suspicious use of SetWindowsHookEx 22 IoCs

Processes:

EXCEL.EXE

pid	process
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.EXE
4264	EXCEL.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\Bill_PYWTF0.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4264

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3204

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4264-115-0x00007FFC62540000-0x00007FFC62550000-memory.dmp

Filesize
64KB

Download
memory/4264-116-0x00007FFC62540000-0x00007FFC62550000-memory.dmp

Filesize
64KB

Download
memory/4264-117-0x00007FFC62540000-0x00007FFC62550000-memory.dmp

Filesize
64KB

Download
memory/4264-118-0x00007FFC62540000-0x00007FFC62550000-memory.dmp

Filesize
64KB

Download
memory/4264-119-0x00007FFC62540000-0x00007FFC62550000-memory.dmp

Filesize
64KB

Download
memory/4264-120-0x000001CC3DDE0000-0x000001CC3DDE2000-memory.dmp

Filesize
8KB

Download
memory/4264-121-0x000001CC3DDE0000-0x000001CC3DDE2000-memory.dmp

Filesize
8KB

Download
memory/4264-122-0x000001CC3DDE0000-0x000001CC3DDE2000-memory.dmp

Filesize
8KB

Download