Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5a8e407a8e919b3…

MALICIOUS

PDF

35.4 KB Created: 2021-05-21 06:10:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: c5a66fd410fee48e0506353871d4b30f SHA-1: 7cedee66798f36c58301441e8cb7238ba5666c23 SHA-256: d5a8e407a8e919b3833890635f96fc481f71186f24384bc3c098a2d6e34c19d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, specifically advertising 'free Roblox executor game hack' lures. One critical heuristic identified these links as pointing to known malicious redirector infrastructure. The document body and embedded links suggest a social engineering attempt to trick users into visiting potentially harmful websites, likely to download further malware or engage in scams.

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/free-roblox-executor-game-hack In PDF document text
    • http://urezerv.com/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://urezerv.com/images/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://urezerv.com/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://urezerv.com/images/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://urezerv.com/images/how-to-get-free-robux-without-downloading-apps-2021_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_off000030da.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30DA 24832 bytes
SHA-256: 3671f24793957729cac5fb56f57ea52a21e7d2246e5d650a5a6fadf97130102e
font_01_sfnt_off0000694e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694E 18192 bytes
SHA-256: aee71e4758d3f369cf1e3ec5c54acee68a6a8a95a34d59606e1594aaec7d96dc

Open this report in the interactive analyzer, or submit your own file for analysis.