Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa8fce1a8d1ddfa…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 17:22:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c91ed1fdab1751a9255c73fc2dfb968b SHA-1: aad93e3bd20f080febb2fa50c4dffcc98f9b19ad SHA-256: faa8fce1a8d1ddfaaa267d0bd909e4c4265db9b362e67ce6c3134e924e11d9c6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as a 'free Robux generator' or 'game hack'. The document body and embedded URLs strongly suggest a phishing or scam attempt to lure users to malicious sites. No scripts were extracted from this sample, but the PDF structure itself facilitates the redirection.

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-get-free-robux-in-roblox-youtube-game-hack In PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/como-ser-hacker-en-roblox-2021_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/roblox-hacks-for-robux-only-admins-should-know_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/wheel-decide-free-robux_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/free-robux-boost_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/roblox-free-wad-exploit_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/roblox-robux-and-tix-hack-free-download-october-2021-update_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/rc8-roblox-hack_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/roblox-wings-gear-free_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/denis-free-robux_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/free-roblox-tshirt-shark-blox_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/roblox-theme-park-tycoon-2-cheat-engine_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/free-robux-giveaway-pin-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://simpt.stikesmitrakeluarga.ac.id/cendana/repository/how-to-get-robux-for-free-no-hacks-2021_GM431946152.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_off000030b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B7 22728 bytes
SHA-256: a3a75afd255db8d7c7bcf76f8de74fefcb85e4e27b1ac08dd9070a06a0ea73e6
font_01_sfnt_off00006389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6389 19220 bytes
SHA-256: e335ef7825635fd60319b7d9c6b32550e8ebd71940ff4329d59e029604f70695