Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c33102c7ac799f4…

MALICIOUS

PDF

35.9 KB Created: 2021-06-25 12:27:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bdb594befe2c7c2e6f6f99a4c405e508 SHA-1: b05561f5d0082ed03df3d0dcbb0653ffc89a36a3 SHA-256: 2c33102c7ac799f4380d6e70d603a4562cbfdb05c37c16e6ff7409a48f76ca9b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free generators" for popular games. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links confirms a malicious intent to lure users to potentially harmful sites. No scripts were extracted, but the document's structure and embedded URLs suggest 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/wie-hacke-ich-mir-robux-game-hack In PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-roblox-card-codes-list_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/best-free-roblox-exploit_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/tiktok-free-games_GM835599320.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-redeem-pin-code-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • https://elearning10.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off0000334f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334F 22920 bytes
SHA-256: 67456924495cac6118f979336cf70d3c55cad3a98e420f1a06458e845e2d023c
font_01_sfnt_off000066ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AD 19404 bytes
SHA-256: a818191ecbce9d931649ff26b28a54529e09ec261cada742023a2bbd03def694

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