Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff038d70f721b0f2…

MALICIOUS

PDF

35.2 KB Created: 2021-07-09 11:21:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: af4f973521761950efc8468dad8e7cfd SHA-1: ab02300f3c87d5257a18e6e4056681b197da2701 SHA-256: ff038d70f721b0f2d5057ccc03ad73c1b6f08ee9aaf3a3fc71261e1ab99781a8
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/roblox-games-to-play-for-free-game-hack PDF link annotation
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-pc_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/get-free-t-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-grab-points_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/roblox-hack-exploit-the-plaza-money-hack-get-10-billion_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-roblox-gift-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/attrition-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-generator-not-human-verixication_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_off00003075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3075 22852 bytes
SHA-256: e524e19b26385db3580f32285f08b1449f5baeee658b8a34531df364699c3f1c
font_01_sfnt_off000063fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FC 19244 bytes
SHA-256: a82be5b5343ca8d3a33473f1eeb2fa03f79ce6a168b6328d177a0c05b35390bb

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