Malicious PDF — malware analysis report

Static analysis result for SHA-256 9930ddc62a49f1ea…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 12:40:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d0230d4345945c25bfa21375fab7d1f0 SHA-1: b5e9042f77f9d577c33ca90cb49730872fcd303a SHA-256: 9930ddc62a49f1eabb600b9c41436881275374b703682a09cced5ca297253a0d
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/how-to-get-free-roblox-gift-cards-game-hack PDF link annotation
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-cheats-for-tix-2021_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/robux-game-com_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-redeem_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-tiktok-fans-no-human-verification-ios_GM835599320.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-attack-on-titan-hack_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/pubg-uc-hack-software_GM1330123889.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-hack-with-cheat-manager_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/comment-avoir-des-robux-gratuit-freerobux_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/robux-hack-whith-easy-human-verifacation_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/claim-your-free-roblox-game_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3222 22356 bytes
SHA-256: 2128354358734573864e8e065b335acea3781347c6c3d573ce2ef92fa586138b
font_01_sfnt_off000063c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C8 19212 bytes
SHA-256: 593eff5b5799541de0a02f4e8f554df8daac443dfed6aeb2634dba9bf3a9d672

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