Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de7e002bdf76d0e…

MALICIOUS

PDF

42.7 KB Created: 2021-05-13 04:43:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4add5ccd24205efca4766382329bc519 SHA-1: 73bc6b0467b611ecd509ed781b95d714ccf51e36 SHA-256: 0de7e002bdf76d0ec42adda6084a4cb27c172195c3d3991dc0082c05a9e6ad2c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a website promising 'free Robux' and game hacks, a common lure for malicious content. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector URLs supports this assessment. No scripts were extracted, but the document's structure and embedded URLs suggest it is designed to lead the user to a potentially harmful site.

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/free-robux-no-human-verification-or-survey-game-hack PDF link annotation
    • http://www.psychom.com/storage/editor/files/earn-robux-websites_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-robux-please_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-robux-generator-no-verification-2021_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_off00004a93.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A93 24104 bytes
SHA-256: 025e630e7e65730ce2921a5b9e21e7d27e2118ba07bfa5cd3d86795381b754c9
font_01_sfnt_off000081d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D9 19156 bytes
SHA-256: 67fe8f54727a48f1cd96414783693fce3a40c8eaba0da55a0542d393d9c1d7aa

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