Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac374d02b2697a7…

MALICIOUS

PDF

40.0 KB Created: 2021-05-14 19:52:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 49a01427b414ecb3e6dc76ba527d1d89 SHA-1: c0189d3815a950d3e28c372980bb1b6df3b957ae SHA-256: dac374d02b2697a7c369d4678c0b0561d361d030b30147d7982385cfddce4f64
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for 'Coin Master', directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the embedded URL is a primary indicator of a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded URI suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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-pc-free-game-hack PDF link annotation
    • http://ohsawamacrobiotics.com/images/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/roblox-free-robux-hack_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_003_off00004993.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4993 23876 bytes
SHA-256: 14a8b0c75ebd11e2b625e1cab7e3fcd4a4af5fdf4a544d722cf0558d68f78d2a
font_01_sfnt_off00007fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD3 18036 bytes
SHA-256: d1e417f8400c4227caca57c80f12745841979f8062967c06e5a64cb2220bf511

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