Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b757d00b353f78…

MALICIOUS

PDF

40.9 KB Created: 2021-05-31 03:52:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 489933bba81db865c63ce0e341b74cc1 SHA-1: 3f4ccf24d61ad09d3672b8e2b7dc718f1eb89c4d SHA-256: 05b757d00b353f7878229757a42faa3c32e563118a68236bf20707a195a9f793
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The primary link identified is https://netcdn.xyz/app/835599320/free-tiktok-coins-game-hack, which is flagged as a known malicious redirector. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/835599320/free-tiktok-coins-game-hack In PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-robux-master_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/tiktok-views-free_GM835599320.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_002_off00004287.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4287 26996 bytes
SHA-256: 52adcd2b7339d81ed7490bdb39287e9d179b871705da8c37a6664779d6b38b89
font_01_sfnt_off00008072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8072 17456 bytes
SHA-256: af63c3f67091ff5b4163c7a95634870b81efad78e40c2266e63b82bf422718e0

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