Malicious PDF — malware analysis report

Static analysis result for SHA-256 784511f03d1e38ea…

MALICIOUS

PDF

44.2 KB Created: 2021-05-31 11:26:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 06cd0a0c5637d363b6782d3e60e7bd99 SHA-1: 5d7ec3b3ce9362ca561f91352e32da3fb914cf63 SHA-256: 784511f03d1e38ea3743c78d3b8f3688149dfd7d7eb0e7acc9da94cb1c4f8c60
160 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'free Robux' for Roblox, directing users to a malicious URL. This URL is identified as part of a known malicious redirector infrastructure. The document's structure and embedded links suggest an attempt to exploit user interest in game-related cheats to lead them to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/free-robux-hack-in-roblox-game-hack In PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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_off00004fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FE4 25500 bytes
SHA-256: 239e0f534dcacda40b3ac681d8c0aff83d3be1cca65eac9c1ce930622f935939
font_01_sfnt_off00008995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8995 18488 bytes
SHA-256: 52c56eb9515cbb239e5937fb4b151e45fdb42491cbd3dd9169af08c232102749

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