Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab8cbffaffdc4639…

MALICIOUS

PDF

34.9 KB Created: 2021-06-30 05:00:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6fb84e30201ed9783106e04480f8bee8 SHA-1: c0d6cd68fbfdf12b1d1b83d5c54bd05dbde80056 SHA-256: ab8cbffaffdc4639df8fca4ef0bc35e9b5b22d1e476bd336be5cc2244606cabb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game currency ('Robux') and includes a link to a known malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting a potentially harmful website. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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/anyway-to-get-robux-on-roblox-free-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-uber-roblox-id_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/robux-earner_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-roblox-counter-blox-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/codes-for-roblox-tycoon-to-get-free-gems_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/earn-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/pokemon-go-accounts-free-list-2021_GM1094591345.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-codes-to-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hacks-for-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-on-coin-master-2021_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_off00003082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3082 22436 bytes
SHA-256: d9997bca0703016ceab0dab36103e29d075df4066377f7a152a67decb4f76297
font_01_sfnt_off0000628d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628D 19240 bytes
SHA-256: 3a0180385d04549256f4cd01b3bc7e97a5e8d7d3558e1955e76d3fcd7c1ccd98

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