Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e230f9211f359a3…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 08:12:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9de11014cb12a053cf33e36d035b1d01 SHA-1: 595fa7329d130bcbb8a1f490a60ae6fb5a09c746 SHA-256: 8e230f9211f359a340c034b4f91315bc95b68b6f68aebfd2679a7e72b98daeac
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free in-game currency, such as 'mcpe-free-download-game-hack'. The ML classifier strongly indicated maliciousness, and the document body text reinforces the lure of free game-related content. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to redirect users to malicious sites for potential malware downloads or scams.

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/479516143/mcpe-free-download-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/all-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-groups-that-give-you-free-robux-every-day_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/fast-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-2021-june_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-prison-life-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/comoponerse-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-rape_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-pokemon-go-free-online_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/arsenal-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-cheat-engine-kill-all-script-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-admin-in-your-own-roblox-place_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-in-roblox-ipad_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/get-free-spins-for-coin-master_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_off00002f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4B 22592 bytes
SHA-256: 7f7677af58acea5214804965bcb69fee73b5df449eff1a8a47d2c2ac994c4666
font_01_sfnt_off0000608b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608B 18532 bytes
SHA-256: 07bec80ec77a407731f20d425ff760d4af3993c3cbef718c37c298fbcddeff72

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