Malicious PDF — malware analysis report

Static analysis result for SHA-256 f10b153cbe05f571…

MALICIOUS

PDF

33.1 KB Created: 2021-06-29 03:43:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 30d200cc2622d81f83a0544cdb29f196 SHA-1: 85904b81e6944da2631a096763e9bbbbfb0f7f55 SHA-256: f10b153cbe05f571a1eef64d5f7b023c338765d0ff5b90ada69bc34426819c1e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure, specifically advertising 'free generator / game hack' lures for popular games like Roblox and Coin Master. The primary malicious URL identified is http://netcdn.co/app/431946152/free-roblox-account-names-game-hack, which is flagged as a known malicious redirector. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-roblox-account-names-game-hack In PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/can-you-get-in-trouble-hacking-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-remdem-codes_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-in-iphone-5c_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-hack-download-free-pc-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/como-hackear-robux-verdadero-no-fail_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-items-in-catalog-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B13 22136 bytes
SHA-256: ad406b370ba3979c9640eba160f7c5045d56c9038a0acfd76081a93fac620b9b
font_01_sfnt_off00005c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3B 19152 bytes
SHA-256: 316b46ef9aba741aa17192d9b94b6bf57ce95353532630b716c315f4dc418ed5

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