Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a00eca9f6bec373…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 06:04:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6c254ba29039482e5a359d5214da240f SHA-1: 646f4fce8ba4670d20588ecfc0acc3262f0f2489 SHA-256: 9a00eca9f6bec373b73f31d422b1394e01aac2c8780de66fc59583793b1088b1
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 0.9980

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 http://netcdn.tw/app/406889139/get-free-lives-on-coin-master-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/free-robux-real-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/calliu-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-no-surbey_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-100-robux-fast-and-free_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/freerubux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-console-code_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-steal-roblox-account_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/rewards-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-script-exploit-to-use-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-free-games-folder_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-roblox-on-windows-10_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-robux-without-personal-info_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-2021-legit-feb-unpatched_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-can-you-get-robux_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_002_off00002f19.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F19 22948 bytes
SHA-256: cc1e977da428a45ba20f6fdb1a97c09a8fcec53e237020895ad20bbfda940d24
font_01_sfnt_off00006297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6297 18112 bytes
SHA-256: 76877415caaa74ad94c6a5ec7b3d5b52d08a711c749e7ae77feab21629262241

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