Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ff39c4d27da88f…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 19:15:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d061e8fb7eb588764f6ce0548a263b53 SHA-1: 0814ef1dd30ed5fad69602b479392e1e923e8722 SHA-256: a7ff39c4d27da88f9e32ae20a930fdf67a6d0bfd6f14f729ca4afcbab9cdaf7c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free items for Roblox, directing users to a malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, 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/games-that-give-you-free-stuff-on-roblox-game-hack In PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-sell-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/good-hacks-to-do-with-a-hang-glider-roblox-treelands_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/awesome-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-hack-someones-password-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-credit-card-generator_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-stuff-on-roblox-computer_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-cheat-engine-bypass-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/gamepass-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-easy-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-cool-t-shirts-free-marshello_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_off0000307f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307F 22472 bytes
SHA-256: 11897a5624a5345352ba533a89138e6472aa7cd2bb6394261486aac22c6e9f06
font_01_sfnt_off00006279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 19716 bytes
SHA-256: 1c9aa06c7577a55ad3a54c8d29005f40724ed74ce2411fd78166072d7b3674ab

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