Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78397fdaf407181…

MALICIOUS

PDF

37.9 KB Created: 2021-05-10 11:47:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ab231ca63b9ab4863b950e077eda56c5 SHA-1: 37522c263552e7d419ace040c4c691b07ca56cb1 SHA-256: e78397fdaf407181236fbd95f05289774a8633d52bb0802e52b6166ccc076132
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as malicious redirectors, specifically leading to a 'free generator / game hack' lure. The document body also contains similar text and URLs, reinforcing the phishing pretext. The primary function appears to be redirecting users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0126

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-800-robux-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B3 24332 bytes
SHA-256: 9a9c8709c75bb93ad7a896094eaf92195fa4116c991a6b86ab3ab1550d31dbfa
font_01_sfnt_off00006828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6828 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7212 18396 bytes
SHA-256: 2059a7894931e9b75336f5975f03d939213f3fdb926ff7d6db67df9fd1731cb7

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