Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b09f42d7ef26d63…

MALICIOUS

PDF

44.6 KB Created: 2021-05-14 18:49:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 29b0f04d6f76a66f78ffc7b02e86257e SHA-1: c8d445b6100fc3a956af2d9303231bbb73fa6a34 SHA-256: 2b09f42d7ef26d639d21d700f7e01039125c182192bb89e7a78f65c0dad66286
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, strongly suggesting a lure for game hacks and free in-game currency. The primary URL, https://netcdn.xyz/app/406889139/free-spins-promo-code-for-coin-master-game-hack, is directly linked to a 'game hack' lure. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/406889139/free-spins-promo-code-for-coin-master-game-hack PDF link annotation
    • http://auto-mankel.de/images/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/get-me-robux_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004760.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4760 24824 bytes
SHA-256: 25d5a78728b7d8f682e1feff6cc019124bce0684e7da385c89c8d9ecfd360821
font_01_sfnt_off000080f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80F8 2956 bytes
SHA-256: aa05c93583c8bb1ea916fd69c8a28a5c303188c92667d4ae562bb4fa0c3eac9a
font_02_sfnt_off00008b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1B 18476 bytes
SHA-256: 012804114e8e9e2aa3b79000d66a92024558acae5133cb67a1122bc204fa5aec