Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3055e5b46804443…

MALICIOUS

PDF

34.1 KB Created: 2021-06-30 11:52:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 452227f9f6bc6721556fb13bed7e3b99 SHA-1: 4e2c5e2e7b92dbba02cb3543621af5b93436c0b0 SHA-256: d3055e5b468044437afb6571bd7778d374efc3ebda76a4a0feba19179fda67bc
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/server-vip-survivor-roblox-hacke-game-hack PDF link annotation
    • https://asiavisiontreks.com/userfiles/files/free-intant-robux-genertaor-no-survey_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/cute-outfits-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/xray-hack_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-free-spins-link-no-verification-2021_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_off00002f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8E 21620 bytes
SHA-256: d0894bc1bdac047528a962a24e5751f9be1ad47a94ff59ef767b832a24711c12
font_01_sfnt_off00005f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F20 19340 bytes
SHA-256: adbdb33c1ebea642ada33e5b081743e43b21a0238af420a6f0068b6312897455

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