Malicious PDF — malware analysis report

Static analysis result for SHA-256 70e4226fcef4581d…

MALICIOUS

PDF

33.4 KB Created: 2021-06-30 23:52:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 72486c0f1917c5a75b8ebfc02cf08559 SHA-1: 92d3c0a79b4118ef7111520527f410cc17625e71 SHA-256: 70e4226fcef4581d692160698e5eb15685dd22ee87557daad0eb7cfa55f8e034
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a critical link to a known malicious redirector, masquerading as a free game hack generator. This lure is intended to trick users into visiting the malicious site, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or malware distribution 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/black-offwhite-free-roblox-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-roblox-account-february_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spin-links-december-30-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/exploit-free-roblox-not-win-rar_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-miscreated-cheats_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-no-human-verification-2021-ipad_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-hacking-website_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_off00002ccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCD 21640 bytes
SHA-256: 9728e01724a230c69763a7301e56bce4b10c966e1e3896d4d454cceb7345f50c
font_01_sfnt_off00005c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C95 19372 bytes
SHA-256: 40eb0f7cdf90420caecbf9f6ecaa8884be3a954f9cdbe7b0571d24fc88f6efc3

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