Malicious PDF — malware analysis report

Static analysis result for SHA-256 97664e811c69a2ef…

MALICIOUS

PDF

44.8 KB Created: 2021-05-12 11:44:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 541bb0aab8fb56159a54509d15522d46 SHA-1: 54d493e49fba624f91417cad7d6b7daef84463c4 SHA-256: 97664e811c69a2ef8c9473532fbe556d6d571722805fa712b432890dca8f3ba2
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 0.9632

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/play-roblox-free-online-game-hack PDF link annotation
    • https://liftkos.com/images/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-tips_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://liftkos.com/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://liftkos.com/images/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/wurst-115_GM479516143.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://liftkos.com/images/robux-2021_GM431946152.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://liftkos.com/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.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_off00004436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4436 26540 bytes
SHA-256: a445910d9bc1e145f15e283955086a0ea5e8004b13198f269493e06aafccc731
font_01_sfnt_off000081fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FE 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAF 18628 bytes
SHA-256: 0face4c994977258c5b75d4e8d8705768a4ec09c316ae5d82e3d2938a44d0e6e

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