Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4faaed56a6161eb…

MALICIOUS

PDF

39.6 KB Created: 2021-05-10 15:10:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e46ab3d13585bcd023b3254875061115 SHA-1: 0c06685245a6ad52ef7b20343509ef04afae1475 SHA-256: d4faaed56a6161eb1f095ad00937e60a54e5c1b9b35fe7d0e0f6e247811c5fe8
130 Risk Score

Malware Insights

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

The PDF file contains a lure for a 'Coin Master Hack Spin' generator, directing users to a known malicious redirector URL. This suggests a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/406889139/coin-master-hack-spin-ios-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
stream_003_off000032a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A4 26732 bytes
SHA-256: 30541affee7ba1155fc0d5b9719b725a37882fd8374ddbe3a6598ff4bad24ea4
font_01_sfnt_off000070a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A4 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A56 17892 bytes
SHA-256: 8a2199a6fb9e6551992738fdb7d2625a8f143b5a9fef4499610b6e02eb0e5450

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