Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff0d510b5284ba0…

MALICIOUS

PDF

52.3 KB Created: 2021-05-12 22:30:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0750d020710327b0f446beea75eb7843 SHA-1: 442863b47a28e9ce945ef266141dd755abaf7e19 SHA-256: 7ff0d510b5284ba069b224c8f88e4c38e08cc4d8fcad9750f4d3a558332b25e1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8646

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/431946152/free-robux-without-downloading-apps-game-hack PDF link annotation
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/demon-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e30.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E30 24688 bytes
SHA-256: e9572b072bfa3805aee3db61e2295d79f2caaa5cda0cdcf4e3b7f5f3cfcecb30
font_01_sfnt_off0000873f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x873F 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000093e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E1 7272 bytes
SHA-256: f462303657ce1de10d3e7d5ae1fe17c8584116bd5bc216971166de87266da924
font_03_sfnt_off0000a552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA552 19876 bytes
SHA-256: 7dd9be13e4665f5a35086e4b23dd28e6d3ecc39135d95cb28b9ae9c86552181a

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