Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1fb1b0cadcfaf9…

MALICIOUS

PDF

34.2 KB Created: 2021-06-26 08:40:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1591b09a71f0dcc7b2984726c529fed2 SHA-1: 0c2f98447621d7f3c0acf6dfedccfdd9711e0386 SHA-256: fd1fb1b0cadcfaf99aa385e0c89cf28eb7d9e32f8a877429252cee5585340e00
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that are identified as malicious redirectors, specifically promoting game hacks and free currency for games like Roblox and Coin Master. The document body and heuristics indicate a lure to download or visit these malicious sites, likely leading to further malware or scams. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-things-in-roblox-catalog-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-script-animations_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-bag-goku_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/cheat-engine-bypass-roblox-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/get-robux-free-legal_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/getrobux-now_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-new-organized-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-items-in-roblox-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
font_00_sfnt_off000030ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AD 21764 bytes
SHA-256: 47caaaf80458bc6edf064a59acc0567de902c97fc60c7a47c69c6f07b00f5133
font_01_sfnt_off00006051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6051 19204 bytes
SHA-256: beca3a982eefdccbe25f3e9bb514b2795afbfd2bbf3f4375c13807216fc980b4

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