Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4bef7323afa7868…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 09:28:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9ce2baf7f08a58a823cb701535e6e9c1 SHA-1: a099aaa7149aa4d611220e964009c700894d48cd SHA-256: d4bef7323afa7868983c7412cb47cb98cf0de7b2d64603e2e33b90ee348aceb7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-free-airport-game-hack PDF link annotation
    • https://www.ma-plast.hr/files/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-online_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/robux-hack-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-wurst_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-person_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-roblox-codes-2021-october_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3039 22640 bytes
SHA-256: 53abb98e91d85df51314642515e8a4dbc8a918b5634a8baa1c47f129105b9dc9
font_01_sfnt_off000062ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FF 19048 bytes
SHA-256: fbd53fa16afc7fff735138814c79eff742fcc39aaf0cecc3bc50a215e73ecfe5