Malicious PDF — malware analysis report

Static analysis result for SHA-256 4184a9b6f4333cf5…

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 18:27:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: aec0a6e4d2998b287d1337e9634dd7d6 SHA-1: 6c4578b7c6b02ff232759f93788d0efc30223b3f SHA-256: 4184a9b6f4333cf5c8633045175a63b3c8e4f340ee9b0da4069884f9c9e1f897
102 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which are SEO-optimized and point to sites offering "game hacks" or "free items." One prominent URL, http://netcdn.tw/app/431946152/get-roebucks-com-game-hack, directly suggests a malicious download. The heuristic firings confirm the presence of a link farm and a malicious PDF classification, indicating a high likelihood of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/get-roebucks-com-game-hack PDF link annotation
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-get-a-free-hoverboard-on-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/games-that-really-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/can-you-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/roblox-free-robux-generator-exe_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-money-without-cheat-engine_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/roblox-free-gear-cheat_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-sell-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-you-get-free-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
font_00_sfnt_off0000327f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327F 22628 bytes
SHA-256: d069d9b38495248bf255d1178fb8e0d5c66ccc70088cdc04e77234785d0029b0
font_01_sfnt_off0000653d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653D 18876 bytes
SHA-256: 3a618fb712185c77c08f57f640f429335c1742aa50035aba4f88ce6740563d77

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