Analysis

  • max time kernel
    142s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-12-2024 17:09

General

  • Target

    infectedmars2021.doc

  • Size

    4.3MB

  • MD5

    0c8555a71a055a1e553ffe8865cb3ea6

  • SHA1

    a8e77218bdb915adec62580f95d3a8a679b18215

  • SHA256

    2a7811607023a04ca559e46d7106588f4542af11352972ff84d28b49e59d4507

  • SHA512

    ebd784a06b35e8affee01c16f599bdb99336ee5d720e540a56b550579b201d0a04d030cc412b9a120158e5c2ec5bb8e2c5b71fcc810c117f8c290377c87973a9

  • SSDEEP

    49152:oVUg5AfUb76jl/PTV0maWj4qO4eiJbFFYRKFZW+sYzbtqrDpee26:o6gF2jxPpbaWjRnuv

Malware Config

Extracted

Family

gozi

Extracted

Family

gozi

Botnet

5513

C2

greenwoodgrace.website

Attributes
  • base_path

    /manifest/

  • build

    250187

  • dga_season

    10

  • exe_type

    loader

  • extension

    .cnx

  • server_id

    12

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi

    Gozi is a well-known and widely distributed banking trojan.

  • Gozi family
  • Process spawned unexpected child process 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies registry class 64 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 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\infectedmars2021.doc"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c c:\programdata\Milne.CMD
      2⤵
      • Process spawned unexpected child process
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2116
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\brainw\Audiobook.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:496
      • C:\Windows\SysWOW64\PING.EXE
        ping w 5000 ya.fr
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2560
      • C:\Windows\SysWOW64\PING.EXE
        ping w 5000 htr-oi.io
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2428
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 -s c:\brainw\name1.dll
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2816
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1516

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\brainw\Audiobook.vbs

      Filesize

      1.1MB

      MD5

      72c67436a89961707eb873fba9a0371b

      SHA1

      c7e18ca8b054e3d7af0d189224a370258e621be1

      SHA256

      cadd5665efe629e813c90a10aa4aadd047f056402be591901573f0bf5ebdaa59

      SHA512

      16851728c04cea0252932d2aea4f61df3d5cc976a65fef1950d8b7f6cf34cd645e8ad429cc2b1b966789a4774b72f09c91c02010224548c689dca3522ad7c783

    • \??\c:\brainw\name1.dll

      Filesize

      586KB

      MD5

      45fce7fad17e37916456694865b10bf4

      SHA1

      dc2e64142432586caef9205f959181fb3d26c301

      SHA256

      9b46b746e0838a160ceaa31bcde6d7eda49c3a065b7f50a3a29577ab6fda1023

      SHA512

      132945f1d638dc042d5d37056a3c6faba581d08dda46c02320b693caf3160a3fafdde2c31deb6ed85e6f14113a55dbdb6b53cadf0b316b6b8ecd87272c14a231

    • \??\c:\programdata\Milne.CMD

      Filesize

      1.1MB

      MD5

      32a99b29a0e80abfc2bbfe8a785324a1

      SHA1

      759fac2f1d0f63d5ff7c8ef54ea3c8bcb9243856

      SHA256

      9f2d02ea06d235ef599acaede041bbb576731bb273045296caf395a2765d786c

      SHA512

      d580790cbccc11a61a4ffac75c72c56653177e64faefea8ab1a175bf8760d0757cf18929d244342d93448734768d8949b3d2d897660f2b0b3cbcd7fd6ab89774

    • memory/2348-37-0x00000000719DD000-0x00000000719E8000-memory.dmp

      Filesize

      44KB

    • memory/2348-40-0x0000000006420000-0x0000000006520000-memory.dmp

      Filesize

      1024KB

    • memory/2348-11-0x0000000006420000-0x0000000006520000-memory.dmp

      Filesize

      1024KB

    • memory/2348-6-0x0000000006420000-0x0000000006520000-memory.dmp

      Filesize

      1024KB

    • memory/2348-2-0x00000000719DD000-0x00000000719E8000-memory.dmp

      Filesize

      44KB

    • memory/2348-0-0x000000002F841000-0x000000002F842000-memory.dmp

      Filesize

      4KB

    • memory/2348-39-0x0000000006420000-0x0000000006520000-memory.dmp

      Filesize

      1024KB

    • memory/2348-7-0x0000000006620000-0x0000000006720000-memory.dmp

      Filesize

      1024KB

    • memory/2348-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2816-43-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB

    • memory/2816-44-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB

    • memory/2816-45-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB

    • memory/2816-46-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB

    • memory/2816-47-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB

    • memory/2816-52-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB

    • memory/2816-53-0x000000006B660000-0x000000006B749000-memory.dmp

      Filesize

      932KB