Malicious PDF — malware analysis report

Static analysis result for SHA-256 50534a63c729e89f…

MALICIOUS

PDF

47.2 KB Created: 2021-06-01 00:36:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: e6a1baeda10d0c7ae8283fe29d2adf31 SHA-1: acc4eaab86ed425714920516a1af2d71d1aee175 SHA-256: 50534a63c729e89f59000185b5aa2a822b85f00bde6eaec3a5ddad222f663e5e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The primary lure directs users to 'netcdn.xyz', which is flagged as malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/cheat-engine-fly-hack-roblox-game-hack In PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/free-h-roblox_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/cheats-for-lumber-tycoon-2-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/games-with-free-boombox-roblox_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/free-robux-by-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/roblox-mod-free-shopping_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.woodentec.de/wp-content/uploads/fsqm-files/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

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_off000053a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53A1 28244 bytes
SHA-256: eaf58a42c296410cb8e3d762d0cb786f2a10bd02e3bdcd14e23306bd6a6490ea
font_01_sfnt_off00009359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9359 19204 bytes
SHA-256: f5b99f3089d67d7e113f253c5ed0ada585395b24ee1bb9cf95fdaa85a208fc02

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