Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f2ce6640a1018c…

MALICIOUS

PDF

43.8 KB Created: 2021-05-15 00:19:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 543c2ada461991ef078ec4193f1513cb SHA-1: c948e8deca3e882afa0a4b3807c5a943e34dc364 SHA-256: 89f2ce6640a1018cd299f9edc847a9425fe3eae129399b51741a2ad5c4d1e906
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as free game hacks. The primary lure URL is https://netcdn.xyz/app/431946152/rbx-free-game-hack, which is part of a chain of redirects. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/rbx-free-game-hack In PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/roblox-com-www_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-coins-on-coin-master_GM406889139.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_off00004929.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4929 28832 bytes
SHA-256: 851adef3482fbadd3abee00fd4d2ab93c10f1deca3e355f5d46c2b4add9f0c5f
font_01_sfnt_off00008ae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE6 17732 bytes
SHA-256: 212f4f57de6c922282aa54d2f6f49c5eca850be9602afd8932fff094b4d72406

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