Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c675bcaee8d9117…

MALICIOUS

PDF

37.5 KB Created: 2021-05-15 08:31:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 04dbaf317357ef9dde917d9440728839 SHA-1: 37f5f51de2c0840b92a562279c5e7d4c1887d302 SHA-256: 0c675bcaee8d911748ebd4178021c21b3baf4b7cbf53dc853487ab143b988b88
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector infrastructure, disguised as a 'free generator / game hack'. The document body explicitly mentions 'Free Spins Coin Master 2021' and includes a call to action to access a generator, further supporting the lure. While no scripts were directly extracted, the PDF structure and embedded links strongly indicate a phishing attempt designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0313

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/free-spins-coin-master-2021-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_off00003378.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3378 30200 bytes
SHA-256: c0141d65e9c49c8f09db2bfcca581acd0bf64272cbfeb27b23c94248ddb650f6
font_01_sfnt_off00007133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7133 18288 bytes
SHA-256: 9732707b45c862b7a6ef8ea2418900def9be3650c6b325207d932644f64622ad

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