Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    10-10-2024 06:43

General

  • Target

    79687ef32097ae98d2d577f0d362ffed81fd058212a210a8ffa371d7fc1be4f0.exe

  • Size

    443KB

  • MD5

    14f08bd33d03c8c7fcc198cb30dc29f6

  • SHA1

    5f3bc9b11d0d629a8b5be0f0f4ae0ae640d49463

  • SHA256

    79687ef32097ae98d2d577f0d362ffed81fd058212a210a8ffa371d7fc1be4f0

  • SHA512

    82f6f076ab818f8cc6ca22620977f837bb3c64699f5d2f6acbe1da37fee9ebc9eea44bb76ea9205284df5cb27123acb69168b6bf286b50c55168c285709db847

  • SSDEEP

    6144:Cvk5/0UUS0436oerlk7DWpnocMbqj6m8Vo/DaZEjy6BbO42T8:550UA43FN7+ocMbUT8anNO4O

Malware Config

Extracted

Family

stealc

Botnet

default5_pal

C2

http://62.122.184.144

Attributes
  • url_path

    /f88d87a7e087e100.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79687ef32097ae98d2d577f0d362ffed81fd058212a210a8ffa371d7fc1be4f0.exe
    "C:\Users\Admin\AppData\Local\Temp\79687ef32097ae98d2d577f0d362ffed81fd058212a210a8ffa371d7fc1be4f0.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\LocalJDGIIDHJEB.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Users\Admin\AppData\LocalJDGIIDHJEB.exe
        "C:\Users\Admin\AppData\LocalJDGIIDHJEB.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2776
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\LocalJDGIIDHJEB.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Suspicious use of WriteProcessMemory
          PID:2944
          • C:\Windows\SysWOW64\PING.EXE
            ping 2.2.2.2 -n 1 -w 3000
            5⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:2404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\CompareUse.xlsx

    Filesize

    9KB

    MD5

    4cf680eb42227adddba5aa12bf49dc61

    SHA1

    92b7ad282f274d6cffae69f4114b0b59a982fb93

    SHA256

    406af3b0df152b478232c390e9b8992453d1850afa087df48cc52cd6e9e42526

    SHA512

    3dd4528188596a774c0bc3472b74e0c94910a4efb54e0897ab47bfa37fee37992c9f80bb08a58acd5e981548c2a3dcf28d316efbe1591df780a46a0687dbc0a0

  • C:\ProgramData\ShowConvertFrom.docx

    Filesize

    16KB

    MD5

    45337d0fe81400542c56a3533a44f3c4

    SHA1

    97f7de7d9a12338057fabad9a80b99d6894bcfed

    SHA256

    bf867a4ba58ba694a0ffec8aa92c0b1ac91823c247ffb75ff4c68a68ffbf27f4

    SHA512

    6216958692ae0effdcc7e087561900dfb7b1e9618a02533e46fde90aed445e925aeff757b2078e531c1b3a1b9fae219ba9108c4089f06f8cb15b060ce5773c21

  • C:\Users\Admin\AppData\LocalJDGIIDHJEB.exe

    Filesize

    17KB

    MD5

    c52e326b3e71b7930cf6b314d1fa1cff

    SHA1

    990b9e596948ab2423d005c7633591cffee7436f

    SHA256

    de7ceb041799349b1fca65b06865087b37f488d0dceb744056d0ba5152551c07

    SHA512

    afbf73d7e879f0454d19e7716eb4e0daf7be24879b25ac409c0c075bf2dff22c74e3d8eae2143aa531b1b24244df829e9102565123d42357bf940723f8c76a86

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/2136-2-0x00000000002E0000-0x000000000032E000-memory.dmp

    Filesize

    312KB

  • memory/2136-48-0x00000000006F0000-0x00000000007F0000-memory.dmp

    Filesize

    1024KB

  • memory/2136-80-0x00000000002E0000-0x000000000032E000-memory.dmp

    Filesize

    312KB

  • memory/2136-3-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2136-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2136-91-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2136-90-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2136-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

    Filesize

    1024KB

  • memory/2136-99-0x00000000006F0000-0x00000000007F0000-memory.dmp

    Filesize

    1024KB

  • memory/2136-100-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2776-98-0x0000000001220000-0x000000000122A000-memory.dmp

    Filesize

    40KB