Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bf7042fa5f3316…

MALICIOUS

PDF

34.3 KB Created: 2021-06-26 03:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 16283e75ef52c40267a454f3aea208c4 SHA-1: 5afc2f9f6b4ea9a6b14bf5277c913c9af634cc30 SHA-256: 30bf7042fa5f3316e8549bc44602f4dcf1373cdd3dc0ae20852ed99698c70434
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure directs users to 'http://netcdn.co/app/431946152/cheating-asimo-roblox-game-hack', which is flagged as malicious infrastructure. The document's content and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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/cheating-asimo-roblox-game-hack In PDF document text
    • https://nendientu.com/public/upload/files/hack-lua-roblox_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-robux-generator-no-servey_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-working-robux_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/how-to-hack-roblox-users_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-robux-please_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/how-to-get-free-robux-no-human-verification-on-mobile_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-aesthetic-clothes-roblox-youtube_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://nendientu.com/public/upload/files/como-hackear-juegos-de-roblox-2021-sin-descargar_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_off00002f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F26 22396 bytes
SHA-256: 1acfb86e1b578d9ddacaf663a103f2ff5b8e520c03ae0b990618bf73ff445b10
font_01_sfnt_off00006106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6106 19136 bytes
SHA-256: 49cb4377068ef9ba5e045fedba8e82d9cc3a7b7fddfc1e0de387939f29fa6c0e

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