Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e8231a030c8748…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 17:10:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0339ab1b3c34fd88fbceef6515837bf7 SHA-1: 57b6944e7b752078351eb813d8b7a3bf19e3a5fd SHA-256: 09e8231a030c8748914c8ae68f03919a90fd88bab53bcb4a5d58b17667d97338
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.co/app/431946152/how-to-get-robux-on-roblox-for-free-ipad-game-hack PDF link annotation
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-on-ipad-and-withoutb-downloading-anything_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/earn-robux-websites_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/nonsense-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-free-obc-card-codes_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/hack-robux_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-hack-client-2021-download_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/get-robux-for-free-with-out-choice-of-getting-extra_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-hack-nopde-engine_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/get-free-robux-and-tix-for-roblox-work_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/ways-to-get-robux-without-hacking_GM431946152.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_off0000302c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302C 21760 bytes
SHA-256: dc1c45caff113588c1f4647f3588d9c419dd3ee6ad557fd62dfb1e561d60dd94
font_01_sfnt_off0000603d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603D 19408 bytes
SHA-256: 614b9230a57892d8b4b9a351f94d67f832ab6a54ea5b410c55b862a03538cf13

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