Malicious PDF — malware analysis report

Static analysis result for SHA-256 92843c75802b3421…

MALICIOUS

PDF

34.3 KB Created: 2021-07-08 01:25:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 3092a55a502948559c25bc02b6dd7351 SHA-1: b07e2a67eaaadb38b754d291d9b2c0a38dccaa2a SHA-256: 92843c75802b34213b1cb603eaf8019185bb72ba5281c89b8f2d0290c81a74e8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/how-to-get-free-roebucks-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-roblox-legaly_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-back-my-hacked-roblox-account_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-use-cheat-engine-on-roblox-one-punch-man_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-do-yu-hack-big-brother-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-roblox-2021-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-prizes_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-lvl-7-exploit-free_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_off00002f88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F88 22388 bytes
SHA-256: 67d36d8cd644b398d825504eeb035f4ec33827b7e22834ff69bcf999d844a230
font_01_sfnt_off0000616b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616B 18944 bytes
SHA-256: bb1bb1fad87c9fcb51de89bb7266f179a7458b8a249a047c92f7843a342167cf

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