Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcbad37cecf19490…

MALICIOUS

PDF

34.9 KB Created: 2021-06-30 09:39:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c5eea4351d5c7cfacbbd0c6721755ae2 SHA-1: 099cd8f145b09b93326fa4b1e901a00747857285 SHA-256: bcbad37cecf19490f2b63282fad0c83898b261760c936b15274d31c1508bf6a8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, designed to lure users into downloading potentially harmful content related to game hacks and generators. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely leading to malware download or further exploitation. No scripts were extracted, but the presence of malicious redirectors and lure content indicates a high likelihood of a malicious workflow.

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/how-to-hack-roblox-with-notepad-game-hack In PDF document text
    • https://opac.heritagejkt.org/repository/free-script-hub-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-stop-roblox-hacking_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-hack-download-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-clothes-for-roblox-2021-youtube_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/gift-robux-free_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-hack-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-guuudd-info_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-admin-hack-code_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-robux-generator-hack-softonic_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/one-piece-millenium-tutorial-roblox-get-free-evil-fruit_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-robux-for-free-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
font_00_sfnt_off00002e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E9D 22628 bytes
SHA-256: b03ff560a5ff8560f1dcd3e870929418086db1a0d03a516c7819463e1598a35c
font_01_sfnt_off000060ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FF 19756 bytes
SHA-256: 56b112832386b216f3025893b75ede3b0c891b2d4baec53b8bc9dfe1f66c0d65

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