Malicious PDF — malware analysis report

Static analysis result for SHA-256 57ea884802cc569f…

MALICIOUS

PDF

42.6 KB Created: 2021-05-31 01:51:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: aee6646ff31f876c11c1c0e8487dae9b SHA-1: a8001e13d14abc725e9c29864295b7e368ca07b0 SHA-256: 57ea884802cc569f0916bf59eff40ae96d29a839ff3b1f77b97fbc3fbf719ce6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a 'game hack redirector' pointing to 'https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-link-game-hack'. This suggests the document's primary purpose is to trick users into visiting malicious sites that may offer cheats or downloads. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9733

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/coin-master-daily-free-spins-link-game-hack PDF link annotation
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://www.beautybytamar.com/wp-content/uploads/fsqm-files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cd9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD9 23992 bytes
SHA-256: 68102b889508faded02f46756682f43eae05edd816a12ac142c657289782c804
font_01_sfnt_off00008325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8325 18476 bytes
SHA-256: dd1e9edcae6782c480dff53724a1580fadec54e6656b8ddfb273bcd699f2c343