a40d6d685730134b481b53d7b84d0e53cd8c752b896c003ba578ed2736c0e47c

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2023, 12:03

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General

Target

a40d6d685730134b481b53d7b84d0e53cd8c752b896c003ba578ed2736c0e47c.xlsx
Size

169KB
MD5

ec6335ee7b2616c999d18d95480dfc1c
SHA1

4a9e314ff2316199d913cb1801ee0b4acb110acd
SHA256

a40d6d685730134b481b53d7b84d0e53cd8c752b896c003ba578ed2736c0e47c
SHA512

351ae053435b8215dc70ed6285f9d15dae5b9395ae01a316fa9d7b0aa0b3a8c68317bb694376d0a3e324a81d2cbd8fe8b85010acc62d8af57cbccaee3319e059
SSDEEP

3072:IpTnYqXVeoqeeS/A1u3VUpYW8ELuSfO0VwcPNsktryu19ny6c/CGSG:uTnJFeleex03YYW8quS7XNZtryu3ny66

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

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

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
4208	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4208	EXCEL.EXE
4208	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE
4208	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 2088	4208	EXCEL.EXE	88
PID 4208 wrote to memory of 2088	4208	EXCEL.EXE	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a40d6d685730134b481b53d7b84d0e53cd8c752b896c003ba578ed2736c0e47c.xlsx"
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:4208
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2088

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:2824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4208-133-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-134-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-135-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-137-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-136-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-140-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-142-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-141-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-144-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-145-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-143-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-146-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-147-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-139-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-149-0x00007FFF27930000-0x00007FFF27940000-memory.dmp

Filesize
64KB

Download
memory/4208-150-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-148-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-138-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-151-0x00007FFF27930000-0x00007FFF27940000-memory.dmp

Filesize
64KB

Download
memory/4208-152-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-153-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-155-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-156-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-160-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download
memory/4208-178-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-179-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-180-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-181-0x00007FFF2A290000-0x00007FFF2A2A0000-memory.dmp

Filesize
64KB

Download
memory/4208-182-0x00007FFF6A210000-0x00007FFF6A405000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads