Malicious PDF — malware analysis report

Static analysis result for SHA-256 c87bea6d14ada702…

MALICIOUS

PDF

44.8 KB Created: 2021-04-30 02:15:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8f1977d1038082b1cf1c5566b73d2778 SHA-1: 504a6291a432c76559684ec00458890243272218 SHA-256: c87bea6d14ada7027534f7a84ab7dfe7b49a2d2e932ee6a8abc4e7a73ff6953c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links disguised as game hacks and generators, with a primary link pointing to a known malicious redirector. The document body and embedded links suggest a lure to trick users into visiting potentially harmful websites. No scripts were extracted, but the presence of multiple malicious links indicates a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9863

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.xyz/app/431946152/gui-roblox-dinosaur-simulator-hack-2021-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/mad-city-roblox-hack-script-pastebin.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-zamasu-dbn-prealpha-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-ninja-animation-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-codes-no-offers.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-cards-for-100.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-gta-5-money-hack-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-script-runner-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-gift-codes.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hack-script-boku-no-roblox-remastered.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-dll-scrips-for-roblox.pdfIn PDF document text
    • https://freerobux.cyouIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004391.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4391 26400 bytes
SHA-256: 3b4f4035b98b1688315e707f7b90e89d55e43ae42690df1e1b6e9cfcc017512b
font_01_sfnt_off00007feb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEB 2848 bytes
SHA-256: 4737c2778a085e0cb49e73f3b054b1a71e3f40720d213b4bfda97f95a31bfbf1
font_02_sfnt_off000089ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AD 19376 bytes
SHA-256: 1aed7cacd0b25b7f41f072b486e8d785611a0ffe87b6fb4d807519f0847ff6a8

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