Malicious PDF — malware analysis report

Static analysis result for SHA-256 af14e97e0175caae…

MALICIOUS

PDF

37.9 KB Created: 2021-05-16 23:30:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2d0f2927fac3b3b9e728ab2ba3513e3c SHA-1: 547142c2a4f11c8ace4964f05c99bca8b4e7ac15 SHA-256: af14e97e0175caaecccbdfdb1dc3f800f9afbcb5ff981ba60b9117ee885ea653
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as a 'free Robux hack'. The document body and heuristics indicate a lure to download a payload. No scripts were extracted from this sample, but the embedded URLs are highly suspicious and indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/free-robux-hacks-no-verification-game-hack In 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_003_off000036ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36EE 25112 bytes
SHA-256: 4cbb46a6a8fd5147ba387dca20220eadaa584cdde483f19d1077e9d9b85e1c33
font_01_sfnt_off00007155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7155 18772 bytes
SHA-256: addbd32849de550f6a3cbf56c70cbffa7cf804e2f09d57d2f784457513eafccd

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