Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d57010802ea30fb…

MALICIOUS

PDF

46.6 KB Created: 2021-05-11 13:09:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6f9a010137b0daf731f0560680e6757c SHA-1: 811689365a6e57402194d79c441bc4d411d4204b SHA-256: 7d57010802ea30fb796184477c290afbafab66c184e5fdbdc98dfa3d83a6b8e3
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 0.8948

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-free-spin-and-coins-links-2021-game-hack PDF link annotation
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e9d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E9D 24980 bytes
SHA-256: 72737ad364dd094dd02fd7137d39eda76a927ecc520ad432617fcd6a504bc2eb
font_01_sfnt_off0000886d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886D 2920 bytes
SHA-256: 03f8397bdf627aa5eb6acb233d3c5d547fa213245667a48a7f92829839117302
font_02_sfnt_off00009284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9284 18632 bytes
SHA-256: bf450557b00699bdc36230f8bff75cef2d4ddc3329c11821453b6bd8c7be45f9

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