Malicious PDF — malware analysis report

Static analysis result for SHA-256 656e5c2993c5b209…

MALICIOUS

PDF

34.6 KB Created: 2021-06-23 20:05:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c17354a48f9265ce80b2fe3637d6822e SHA-1: aaab3484e82c90168a35cb5aadc3b6e5de5dadbc SHA-256: 656e5c2993c5b209e5a385b5dee6171ef27cc2594191b261701be351b743e308
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising "Robux Hack" generators. The document body and embedded URLs strongly suggest a lure for users interested in game cheats or virtual currency, leading them to potentially malicious sites. The presence of multiple redirector links indicates a high likelihood of a phishing or scam campaign.

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/robux-hack-2021-on-phone-game-hack In PDF document text
    • https://anlathich.com/public/upload/files/free-printable-valentines-day-cards-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/fake-roblox-online-free_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-codes-no-viruses_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/clothing-making-software-free-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-hack-roblox-real_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-free-hats_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_off00002f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F80 22272 bytes
SHA-256: 7f64ee401558ce139774c8a74e9de9f8d98a8b887a1a0695ab04b8b474f91681
font_01_sfnt_off00006110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 19444 bytes
SHA-256: 8bfa8d7a07bbe1baeea2a3a57b29030b5b3e21d61d6e0a2c2e221b9fd720e811