Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a3ccf572f53c3f3…

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 00:07:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: eda07e94e2fc15281d7acc3bcd51219e SHA-1: cd5d4204d72e8ed90495499d898db36ad2aea6d0 SHA-256: 0a3ccf572f53c3f3064e37a9a79923e78b717633ba44c4d74ac89cfae9113095
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 0.9969

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/406889139/coin-master-unlimited-spin-link-game-hack PDF link annotation
    • http://spentulib.com/search//repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://spentulib.com/search/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://spentulib.com/search/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://spentulib.com/search/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://spentulib.com/search//repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search//repository/free-robux-hack-no-verification_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
stream_003_off0000464a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x464A 28616 bytes
SHA-256: d360580e75fe1553e75620c6a4192222029106d1005e141a0009d097573f10a1
font_01_sfnt_off000087b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B3 18584 bytes
SHA-256: 4b9e97571f76fbd37980e49efa03e4d0776fec80245dbf17b6cc6ba6596e58ec

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