Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e574d8ecee7f352…

MALICIOUS

PDF

46.2 KB Created: 2021-05-19 20:36:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 20763a7a6fcca0b06032d827b1c47eb9 SHA-1: 4657226fced63289e17b5b3ce1c0cfce6c479788 SHA-256: 0e574d8ecee7f352918d5e70475c476b79ee559effe3ad9d9ab7c559f2aace75
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting "free generators" and "game hacks" for popular games. The primary lure URL is https://netcdn.xyz/app/431946152/how-do-you-get-free-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering tactic to drive traffic to potentially malicious sites, likely as part of a phishing or scam campaign. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/how-do-you-get-free-robux-game-hack In PDF document text
    • http://pia2000.net/images/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/toolbox-mod_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000481e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x481E 27272 bytes
SHA-256: ed264bbc396686143678f2dd93af68d18a564c84a8b30a436c7b9c7830c2dd37
font_01_sfnt_off00008704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8704 2888 bytes
SHA-256: dcdd98ee8e25436a83587ccb4027347dd2c3fcec95f3413942edd4086125bcca
font_02_sfnt_off000090d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90D8 18612 bytes
SHA-256: 37b0398febc23a1417b5642eaebf6c5e0b941c8fdaeae9a9e3ba89062b3e12f9

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