95aa2153be6ed716015de13990f087364a07ec1e3fb68edacb931d992024db90

Analysis

max time kernel
128s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
03/11/2022, 20:04

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General

Target

95aa2153be6ed716015de13990f087364a07ec1e3fb68edacb931d992024db90.xls
Size

217KB
MD5

38ecc81d8d9b907315936b556cf090eb
SHA1

62d6cb35385c3c20962aaa7c4743c4ce5cf5b4d3
SHA256

95aa2153be6ed716015de13990f087364a07ec1e3fb68edacb931d992024db90
SHA512

cb6fcd660b2b17865711ca18fa721dd62343ba8b9445683d3123dbc2280cb99462eaa7827ff80988d18172e2fa5f30a04b2e9ddd22682bf3015ca524ff52a2f9
SSDEEP

6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgByY+TAQXTHGUMEyP5p6f5jQmY:wbGUMVWlbY

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://ftp.agir-santeinternationale.com/doctors/KAacngW97n4ApzVBDdGy/

xlm40.dropper

http://www.vinyz.com/admin3693/BDFFgAZ6zBRumcUSG/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/NRAdJ/

xlm40.dropper

http://www.muyehuayi.com/cmp/Vtm2m7z88g/

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	4304	4716	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4240	4716	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3756	4716	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4604	4716	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 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
4716	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4716	EXCEL.EXE
4716	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE
4716	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 4304	4716	EXCEL.EXE	68
PID 4716 wrote to memory of 4304	4716	EXCEL.EXE	68
PID 4716 wrote to memory of 4240	4716	EXCEL.EXE	69
PID 4716 wrote to memory of 4240	4716	EXCEL.EXE	69
PID 4716 wrote to memory of 3756	4716	EXCEL.EXE	70
PID 4716 wrote to memory of 3756	4716	EXCEL.EXE	70
PID 4716 wrote to memory of 4604	4716	EXCEL.EXE	71
PID 4716 wrote to memory of 4604	4716	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\95aa2153be6ed716015de13990f087364a07ec1e3fb68edacb931d992024db90.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:4716
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4304
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4240
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3756
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4604

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/4716-128-0x00007FFA5A110000-0x00007FFA5A120000-memory.dmp

Filesize
64KB

Download
memory/4716-129-0x00007FFA5A110000-0x00007FFA5A120000-memory.dmp

Filesize
64KB

Download
memory/4716-119-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-118-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-117-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-116-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-290-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-291-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-292-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download
memory/4716-293-0x00007FFA5CE30000-0x00007FFA5CE40000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads