Malicious PDF — malware analysis report

Static analysis result for SHA-256 97f1ea274da5389a…

MALICIOUS

PDF

36.0 KB Created: 2021-05-21 22:51:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 81570ea44459628dc944926394cefb79 SHA-1: 5800c06aae2a714e1c0512c892d33bebf917b116 SHA-256: 97f1ea274da5389aee6707fa1d228b869b56c9003fd4be1d7e0478c2035452b1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and generators. The document body explicitly mentions "Robux Hack Generator" and "CLICK HERE TO ACCESS ROBLOX GENERATOR", reinforcing the social engineering aspect. The primary IOC is the malicious redirector URL which is likely used to serve further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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 https://netcdn.xyz/app/431946152/robux-hack-generator-game-hack In PDF document text
    • http://practicaltech.com/images/pokemon-go-free-pokeballs-2021_GM1094591345.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/will-minecraft-ever-be-free_GM479516143.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
stream_002_off00003106.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3106 25300 bytes
SHA-256: 936db649e62d11e64d9fe9984e363b3900b9dc421c87e96f21aeff9148fa31fb
font_01_sfnt_off00006b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0F 18352 bytes
SHA-256: f5433ce3dc9930d213a8e7315569ee207b9df6dd56817c97a1fb358bc14a6a3b