Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d25ecbd709079fd…

MALICIOUS

PDF

39.1 KB Created: 2021-05-24 02:42:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 3e7c0f23acfd9a43672a65f9df0bc18e SHA-1: 5a301c3b18d5531572908d7831a0d34fb5bb1e5a SHA-256: 1d25ecbd709079fd9e5e235cf676ddc80f187816a2a410d59e8bf57e7ff63f12
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for "Free Robux No Verification" and includes a link to a website that appears to be a generator or hack. The document body and heuristics indicate that clicking the embedded link will redirect the user to a malicious site, likely for further exploitation or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.xyz/app/431946152/free-robux-no-verification-game-hack PDF link annotation
    • http://sportagon.be/images/minecraft-handbook_GM479516143.pdfIn PDF document text
    • http://sportagon.be/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://sportagon.be/images/coin-master-free-download_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000323c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x323C 24252 bytes
SHA-256: 07f86a0878e4daa886756e8b7cf87e41baca0c12b65e5230515ccba9e123a141
font_01_sfnt_off00006971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6971 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00007618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7618 18600 bytes
SHA-256: 361892a278de990f6dfe9fe9f512a0ec39aeba1740037781b92f32c6ad2b5051

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