Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd5230d20ada544…

MALICIOUS

PDF

46.9 KB Created: 2021-05-13 17:08:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5672c7a595efe74ad48dc7dd090da28f SHA-1: 9724c4b0dc8efb484a47fa68dcd68f9c757930bf SHA-256: 2cd5230d20ada54433d469923e3b7d7c0cfe75c06d738c3f74689841c6077176
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 0.8948

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/431946152/free-robux-redeem-codes-game-hack PDF link annotation
    • http://christiansymbolkits.com/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-com_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/robux-generator_GM431946152.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
font_00_sfnt_off000049e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E9 27908 bytes
SHA-256: 17e60916ee4f308a579e70e5c9a89ab520579192dff38d010b329693fe8aef07
font_01_sfnt_off000088c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C9 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off0000946b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946B 18448 bytes
SHA-256: ac1fbd71dc65d7a5013a2beb110170fe519d7ae17df877d161357825f85fd2ae

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