6fb725ac3a4e123fe7ca68cfc479f169aecb0350376408578a104bf4737ca63a

Analysis

max time kernel
128s
max time network
141s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
04/11/2022, 08:00

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General

Target

6fb725ac3a4e123fe7ca68cfc479f169aecb0350376408578a104bf4737ca63a.xls
Size

217KB
MD5

d7364535e96ba7bbd7784de171785233
SHA1

b4dc8dcb9e5ee1a6f5d5f3826539541b45efe296
SHA256

6fb725ac3a4e123fe7ca68cfc479f169aecb0350376408578a104bf4737ca63a
SHA512

21b2e75713ecda115c6bb08b4da83868577db3936d6b964745f9d75497241982555e0b058beee8227208093e131f9eb4c53ef01e57cf6874031d553011032ffd
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dg3yY+TAQXTHGUMEyP5p6f5jQmw:TbGUMVWlbw

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://wijsneusmedia.nl/cgi-bin/DvxmZndf0/

xlm40.dropper

http://brittknight.com/PHP/Aqxf09OugZ/

xlm40.dropper

http://nlasandbox.com/facebookpage/JFqg2Aqkl3UPZi6xGz/

xlm40.dropper

http://www.campusconindigital.org/moodle/LumMe/

Signatures

Process spawned unexpected child process 4 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3092	516	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4664	516	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5088	516	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4008	516	regsvr32.exe	65

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
516	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
516	EXCEL.EXE
516	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE
516	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 516 wrote to memory of 3092	516	EXCEL.EXE	68
PID 516 wrote to memory of 3092	516	EXCEL.EXE	68
PID 516 wrote to memory of 4664	516	EXCEL.EXE	69
PID 516 wrote to memory of 4664	516	EXCEL.EXE	69
PID 516 wrote to memory of 5088	516	EXCEL.EXE	70
PID 516 wrote to memory of 5088	516	EXCEL.EXE	70
PID 516 wrote to memory of 4008	516	EXCEL.EXE	71
PID 516 wrote to memory of 4008	516	EXCEL.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\6fb725ac3a4e123fe7ca68cfc479f169aecb0350376408578a104bf4737ca63a.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:516
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3092
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4664
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5088
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4008

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

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Downloads

memory/516-294-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-117-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-118-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-119-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-128-0x00007FFF533C0000-0x00007FFF533D0000-memory.dmp

Filesize
64KB

Download
memory/516-129-0x00007FFF533C0000-0x00007FFF533D0000-memory.dmp

Filesize
64KB

Download
memory/516-116-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-296-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-297-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download
memory/516-295-0x00007FFF56AB0000-0x00007FFF56AC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads