Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d7c59d5b30f778…

MALICIOUS

PDF

37.5 KB Created: 2021-05-21 19:07:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 164159e817197ab5907d5b9e90e16952 SHA-1: 37494daf0cb0620b9d1d764d1626ebe10351a7c1 SHA-256: 02d7c59d5b30f7787f41a7281d4d9a44b6f20ec4944854dcc965127b8cb97b86
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to a "free generator / game hack" lure. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of these links suggests an attempt to redirect the user to a site that likely hosts further malicious content or exploits. The document body contains text related to Roblox and free Robux, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/roblox-fun-com-free-robux-game-hack PDF link annotation
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/how-to-earn-free-robux_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
stream_002_off0000310b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x310B 28344 bytes
SHA-256: 7e5714e99c1ad1bc5baf539bd9ab9deb87fadfbc862d775fb9152beb53bc07e3
font_01_sfnt_off0000712f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712F 18348 bytes
SHA-256: 9560f0e6f9a4e6be006083e3696e79311a38bb173f302534750988b281bae61f

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