Malicious PDF — malware analysis report

Static analysis result for SHA-256 d95258dac925e08e…

MALICIOUS

PDF

36.0 KB Created: 2021-06-25 14:36:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1c0cee63873a044b1a1ed1155c960861 SHA-1: 586a085be3f95553d08520ccd4a64d3a4db495ac SHA-256: d95258dac925e08e9898c4ca70767e8ac3d00206ca64c5997457db5d285129bc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, disguised as a 'free Robux hack generator'. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the lure content strongly suggest a phishing or scam attempt, likely intended to lead users to a malicious website or download further malware.

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/free-robux-hack-generator-2021-game-hack In PDF document text
    • https://lib.unitri.ac.id//repository/robux-online_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-profile-picture-free_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-tips_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/cheat-roblox-bleach-primera_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-coloring-pages-printable-free_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/blogger-coin-master-free-spins_GM406889139.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_off000033a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A0 22848 bytes
SHA-256: 85109b2ba83aa24ea7c39988f04dad717470d8524bbf0709915ec732420911ee
font_01_sfnt_off000066a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A4 19392 bytes
SHA-256: a86a66aa215c4a6c1420a316fad1dc44acfead0b6237a5d506d2957225a2c08b

Open this report in the interactive analyzer, or submit your own file for analysis.