Malicious PDF — malware analysis report

Static analysis result for SHA-256 e69e2a4fc2bc2556…

MALICIOUS

PDF

35.9 KB Created: 2021-07-05 09:36:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9e003cc1bb2f9c77d7322ea71818831d SHA-1: 9249c03765498a88761e7bfaa452e5e1ecf920e3 SHA-256: e69e2a4fc2bc2556bca3acd69fb279be6b542e9b2e6ad75bae4e95b1ced7c062
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/406889139/coin-master-hack-lost-world-2021-com-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/roblox-free-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-apps-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/robux-hack-online_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-need-password_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-followers-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-roblox-every-day_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-hack-mad-city_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-pets-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-cheat-engine-codes_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-know-who-is-hacking-on-roblox-killing-everyone_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/new-claim-gg-promo-code-free-robux_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_002_off00003363.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3363 23052 bytes
SHA-256: a4e54c040e7e3943966526cd252d359eed3b797fa9412410adf1afc5d58c6418
font_01_sfnt_off00006735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6735 19112 bytes
SHA-256: 60b58fc0b24f37e4228cc2e8a98b43f43bbe6033a266f0f102aeab5640bba4a4

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