Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddce196a84ec7ba7…

MALICIOUS

PDF

46.8 KB Created: 2021-06-11 02:53:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: fbe9ab36b17af4a8e420bf5af7957285 SHA-1: 84dcf8bbd3d94ec74ac901abfb8cb45218876a44 SHA-256: ddce196a84ec7ba75988e43081e066819e7de3afa9786ccedcedb80b782e8287
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links to known malicious redirectors, specifically advertising 'game hacks' and 'generators' to lure victims. The primary link directs to a URL associated with Roblox hacks, which is a common social engineering tactic. The document's structure and embedded links suggest it is designed to lead users to potentially malicious websites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.tw/app/431946152/roblox-hack-menu-jailbreak-2021-abril-game-hack In PDF document text
    • https://xiangquan.com.tw/image/data/files/robux-boost_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-code-lua-roblox-hacking_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/where-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-hack-lost-world-2021_GM406889139.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
stream_004_off0000520e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x520E 28160 bytes
SHA-256: 14b1a675eb8d1f75f66af9c507ddc0b4847a100dc3f855023772cb90ce7f18a2
font_01_sfnt_off000091f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F0 19204 bytes
SHA-256: 3bc967858baa0d40c4ddab159150bf978a04b6a8ad43bb969270ef582aa3c67b

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