Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd7e51fd1bd4ca9…

MALICIOUS

PDF

33.5 KB Created: 2021-06-28 22:23:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: e76e4245b29946781146672c210d9d54 SHA-1: cd9edb2dddcdb7803211ca7caa5b24dbfc8c4723 SHA-256: 9bd7e51fd1bd4ca9d4a3cb765c9439d712e0b1bb9850ccee988c121c163a64a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. The document's content and embedded URLs strongly suggest a phishing or scamming attempt, potentially leading to malware delivery.

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/how-to-get-free-robux-using-cheat-engine-game-hack In PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-people-and-get-their-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-cheats-for-robux-and-tix-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-hacking-packs-for-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-free-boombox-script_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-adopt-me-how-to-get-free-money_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-400-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-prison-life-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-to-use-roblox-renders_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-stuff-in-catalog-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-swords-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-let-them-remain-cheat_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/backdoor-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-roblox-accounts-101_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-roblox-gift-card-codes-reddit_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/http-www-cheatsguru-com-pc-roblox-cheats-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-free-shop-hose_GM431946152.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
font_00_sfnt_off00002e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E82 21316 bytes
SHA-256: 37af2de0c3827e254e381a9248f7b5f495b2d9ab5d0609447826813a81cd6069
font_01_sfnt_off00005d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D40 19272 bytes
SHA-256: 1733ee8df54bcc6228320d61d14fadc316d8ecfc609746cc03fd8498716c2bb1

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