09a000f29cf4a07064de4eb582897537ad796ff4c8afca61174cd86066442889

Analysis

max time kernel
148s
max time network
145s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
04/11/2022, 02:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

09a000f29cf4a07064de4eb582897537ad796ff4c8afca61174cd86066442889.xls
Size

217KB
MD5

64aea46e6ef6ff7d5b4ddde87bed8f6f
SHA1

67586125dce100a18d71430f0d4994c162b2ae41
SHA256

09a000f29cf4a07064de4eb582897537ad796ff4c8afca61174cd86066442889
SHA512

d2daadbc4923e411cdee718e5d52044a6ae788f31d3b16368a0de3098b3d1c45aada9448f3acee5d23566ec9844200e3443293709234b9915409c66ece02e9c5
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgXyY+TAQXTHGUMEyP5p6f5jQm2:DbGUMVWlb2

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://barkstage.es/wp-content/0E7NdYl7TZuHMJq7/

xlm40.dropper

http://contactworks.nl/images_old/NuEAhfF0PCFhvv/

xlm40.dropper

http://www.iam.ch/wp-content/cache/minify/O1OAjWnfen/

xlm40.dropper

https://www.elaboro.pl/wp-admin/J0hwyIMsk9YFIi/

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	5088	4736	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4056	4736	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2032	4736	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3088	4736	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
4736	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4736	EXCEL.EXE
4736	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE
4736	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 5088	4736	EXCEL.EXE	68
PID 4736 wrote to memory of 5088	4736	EXCEL.EXE	68
PID 4736 wrote to memory of 4056	4736	EXCEL.EXE	69
PID 4736 wrote to memory of 4056	4736	EXCEL.EXE	69
PID 4736 wrote to memory of 2032	4736	EXCEL.EXE	70
PID 4736 wrote to memory of 2032	4736	EXCEL.EXE	70
PID 4736 wrote to memory of 3088	4736	EXCEL.EXE	71
PID 4736 wrote to memory of 3088	4736	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\09a000f29cf4a07064de4eb582897537ad796ff4c8afca61174cd86066442889.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:4736
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5088
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4056
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2032
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3088

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

Loading Replay Monitor...

Downloads

memory/4736-117-0x00007FFDF03F0000-0x00007FFDF0400000-memory.dmp

Filesize
64KB

Download
memory/4736-118-0x00007FFDF03F0000-0x00007FFDF0400000-memory.dmp

Filesize
64KB

Download
memory/4736-119-0x00007FFDF03F0000-0x00007FFDF0400000-memory.dmp

Filesize
64KB

Download
memory/4736-120-0x00007FFDF03F0000-0x00007FFDF0400000-memory.dmp

Filesize
64KB

Download
memory/4736-129-0x00007FFDED620000-0x00007FFDED630000-memory.dmp

Filesize
64KB

Download
memory/4736-130-0x00007FFDED620000-0x00007FFDED630000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads