Malicious PDF — malware analysis report

Static analysis result for SHA-256 2150379b08643eab…

MALICIOUS

PDF

42.8 KB Created: 2021-05-16 02:30:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e7f66a39ed8fa988592530888bdf0b05 SHA-1: 82f03c7b1ed12562bc4349ff35b0b4374793d599 SHA-256: 2150379b08643eab720f30bae83d5a5130326ab695ea1d410a3474f1a0c78a99
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious redirector. The document body and embedded URLs reinforce this by referencing game hacks and free Robux, aiming to trick users into clicking the malicious link. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-fun-com-free-robux-game-hack In PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://elearning.man3pk-kotamakassar.sch.id/__statics/gudangsoal/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b7a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B7A 25108 bytes
SHA-256: a88e1e43517e0c4d839d8ab80dd5f20cdf062cbf6fa7e8e17cea1e13656349ba
font_01_sfnt_off000084bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BB 18348 bytes
SHA-256: 9560f0e6f9a4e6be006083e3696e79311a38bb173f302534750988b281bae61f

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