Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2030785f6ae400…

MALICIOUS

PDF

37.2 KB Created: 2021-07-01 21:52:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d14a7e90aa6965d6c07e80bc28ac331c SHA-1: 26ea55d004de4b1246b18b66c16dc920566bf39c SHA-256: 3b2030785f6ae400ee235f7eff35be29e88ebe9d471328ed4dd1b2c62723f978
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux and game hacks, directing users to a malicious redirector URL. The ML classifier strongly indicates maliciousness, and the embedded URL is associated with known malicious infrastructure. No scripts were extracted, but the document's structure and content point to a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.co/app/431946152/free-robux-generator-fresh-update-5-03-2021-game-hack In PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/pokemon-go-free-100-iv-coordinates_GM1094591345.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-r2d-money-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-things-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-roblox-water-bottle-labels_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_off00003554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3554 22924 bytes
SHA-256: 81b7dd79e85fb4ca76ee734af1d0a9939313d6030bc6da42327d7074db6c69ab
font_01_sfnt_off0000690a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690A 20080 bytes
SHA-256: 4b7cdcdab6fc51a061177731763bf2be0ff764631c080da4c222d593fcad6537

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