Overview

overview

10

Static

static

8

ef2ce641a4...9c.xls

windows10-1703-x64

10

Resubmissions

30-01-2023 01:41

230130-b4cg6sec8w 10

24-11-2022 05:06

221124-frw39sea9s 10

Analysis

  • max time kernel
    1664s
  • max time network
    1588s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-01-2023 01:41

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c.xls

  • Size

    216KB

  • MD5

    2486374800299563ab8934122234242a

  • SHA1

    47bfe94aa96ef43231890f04ccd286b0888e10c8

  • SHA256

    ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c

  • SHA512

    74e52e1e1317908447340cbba32949321ed435f17a524224af80236ecdf67187c83908cca514e82a49b9abe9495125ba741e01ed8f30663124c13fce339c63e5

  • SSDEEP

    6144:bKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgAyY+TAQXTHGUMEyP5p6f5jQmK:GbGUMVWlbK

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://audioselec.com/about/dDw5ggtyMojggTqhc/
xlm40.dropper

https://geringer-muehle.de/wp-admin/G/
xlm40.dropper

http://intolove.co.uk/wp-admin/FbGhiWtrEzrQ/
xlm40.dropper

http://isc.net.ua/themes/3rU/

Signatures

  • Process spawned unexpected child process 4 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 57 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 63 IoCs
  • Suspicious use of SendNotifyMessage 59 IoCs
  • Suspicious use of SetWindowsHookEx 22 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c.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:4740
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4612
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4808
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:3168
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4064
  • C:\Windows\regedit.exe
    "C:\Windows\regedit.exe"
    1⤵
    • Runs regedit.exe
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    PID:2556
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4904
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k SDRSVC
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3600
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /0
      1⤵
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4808
    • C:\Windows\system32\mmc.exe
      "C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s
      1⤵
      • Drops file in System32 directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:428

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Query Registry

    3
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    3
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/428-472-0x00000000049A0000-0x00000000049B0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/428-474-0x00000000049A0000-0x00000000049B0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/3168-265-0x0000000000000000-mapping.dmp
      Download
    • memory/4064-266-0x0000000000000000-mapping.dmp
      Download
    • memory/4612-256-0x0000000000000000-mapping.dmp
      Download
    • memory/4740-120-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4740-121-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4740-122-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4740-123-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4740-132-0x00007FF9D4ED0000-0x00007FF9D4EE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4740-133-0x00007FF9D4ED0000-0x00007FF9D4EE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4808-259-0x0000000000000000-mapping.dmp
      Download