Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6285eba1e34f1de…

MALICIOUS

PDF

31.5 KB Created: 2021-07-19 17:43:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f55d67f508fb454412886a6375b97f15 SHA-1: 5a13d3702c34a59e9ce48360935086477dfc60bd SHA-256: a6285eba1e34f1de30439efaee5cee91f34b6f81fbdd4f43102296d84401fab1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering 'free generators', 'game hacks', and 'free currency' for popular games like Roblox and Minecraft. These links are identified as malicious redirectors, indicating a phishing or scam attempt. The document body explicitly mentions 'Free Roblox Accounts With Robux' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', reinforcing the lure. While no scripts were extracted, the embedded URLs and the nature of the lures strongly suggest a social engineering attack aimed at driving traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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.tw/app/431946152/free-roblox-accounts-with-robux-game-hack In PDF document text
    • http://shapemybrows.id/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://shapemybrows.id/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/games-that-give-you-free-robux_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_off0000284f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x284F 21412 bytes
SHA-256: b8fdb7f92221775070f9fe926710f9f2229a5b42f2312e53e25e90f7c4d08dfe
font_01_sfnt_off0000572b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x572B 18860 bytes
SHA-256: 865574bf4c8bdee12f9e426a22e4a3f20a88a2333a4bf7711c0a9b9eff7733be

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