Malicious PDF — malware analysis report

Static analysis result for SHA-256 2158a21843857810…

MALICIOUS

PDF

42.7 KB Created: 2021-05-13 06:05:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a06d9a9b78dfe43adea7ca4740bc2113 SHA-1: a93aafa6ec05e58db7ad84639cd7b91d9687e4e9 SHA-256: 2158a218438578108a65b26cc72d513c78b9a9290b493c7a5eadbf518c055603
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 0.9971

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/roblox-free-pets-game-hack PDF link annotation
    • http://jdlwealth.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/wurst_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-free_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-roblox-accounts-dantdm_GM431946152.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
stream_003_off00004518.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4518 28652 bytes
SHA-256: 73914ecf7cb174827dff127d47f182c437bb59ed03fabb62631fa423050a46c1
font_01_sfnt_off000084f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F1 18204 bytes
SHA-256: e6dab3842af37aa13062c3ed88bc226f2e60d4bb47f1ab25515567cf82d0f81e

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