Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec347b5511cde23…

MALICIOUS

PDF

33.2 KB Created: 2021-07-06 07:50:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0ae84cfb806284c90d6036e8cfd9d464 SHA-1: d8df6aad107d3023341101a099ca9eb490fe3ed7 SHA-256: 1ec347b5511cde23b577a202bc0d2224a49cfe0512db76a809e736061af59f0e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and cheats for popular games like TikTok, Free Fire, and Roblox. The primary lure is the promise of free in-game items, designed to trick users into clicking the malicious links. The document body and embedded URLs strongly indicate a phishing or scam campaign aimed at users seeking advantages in online games.

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.tw/app/835599320/tiktok-vs-free-fire-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-to-get-unlimeted-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/tiktok-free-ads_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-you-get-free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-without-tix_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/adopt-me-roblox-hack-money-free-youtube_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-assassin-free-knife-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-on-roblox-apocalypse-rising-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-group-join_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-daily-spins-today_GM406889139.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_off00002dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC1 22396 bytes
SHA-256: 3994a5cead21b8c9508ccb7a7b0c8455e826abd1fa252770f5b0de3954b8ca76
font_01_sfnt_off00005f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8D 18108 bytes
SHA-256: 0da46590636ae5fc9211fdcf2e7853349e72d9cbc1761429bc60646a1fc405d2

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