Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe80bb7d78387ac…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 18:10:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: eaef679d0fdba6963db43f465e1d2d0b SHA-1: 18c2497e571573edcedebcb1c4e1e87fc59a64c0 SHA-256: abe80bb7d78387acee93ee65f95eb575531b046de2c949bfdae41bd4e56e792d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple lures for 'free Robux' and game hacks, directing users to external URLs. The primary malicious URL identified is http://netcdn.tw/app/431946152/free-robux-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a social engineering tactic to redirect users to potentially malicious content or phishing sites.

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.tw/app/431946152/free-robux-hack-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/sharkblox-trash-gang-shirt-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/tips-and-hints-to-get-robux-for-free-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-admin-on-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/avast-bloque-les-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/where-tiktok-free-views-apk-download_GM835599320.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robux-win_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-generator-club_GM431946152.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_off00002dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD9 22324 bytes
SHA-256: 245668f65edf51f66d60a63578341a1e1619f61b865fa810197a90ad1aa68fbe
font_01_sfnt_off00005f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7D 18884 bytes
SHA-256: dc79040e010cad5ef573560dd0163568f4a40b7ac77bac9f212c194fdd2f4c7b

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