Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ce394c58bff09c…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 02:10:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 85fd2d628d28cb77be251833b633eec8 SHA-1: bbebe886b568f20b0880e81bea4e08fc91d0f105 SHA-256: d5ce394c58bff09c0ed5b011794428b91da01f98ec69e6dde83e2edede81aefe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a known malicious infrastructure. The document body and heuristics indicate a lure for game hacks, specifically targeting Roblox, which is a common tactic for phishing or malware distribution. The presence of a malicious redirector suggests the intent is to lead the user to a site that will likely host further malicious content or attempt to steal credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hacks-de-roblox-en-minijuegos-game-hack In PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/comment-hack-roblox-prison-life-2021_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-candy-20-roblox-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/i-know-who-hacked-my-roblox-account_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/mad-city-cheat-codes-season-2-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/can-you-make-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/rape-simulator_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-hack-on-roblox-3-simple-steps-youtube_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-free-glitch_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/flip-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-21-01-2021_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/earn-free-robux-plus_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-gamepasses-roblox-2021_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_off00002f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F94 23736 bytes
SHA-256: 80e7f7279f8958239bd38f277542abf87bbda31679ff914954a00e058ce997fb
font_01_sfnt_off00006447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6447 19468 bytes
SHA-256: 0dc393875c96129486e52b6ea5e139ece7fd0b51a92a06d09df95401e1a1b6b2

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