PDF static analysis report

Static analysis result for SHA-256 2f83f5cdae3e8b4b…

SUSPICIOUS

PDF

35.5 KB Created: 2021-07-05 19:02:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 453c55beca7bc388047870ae418087ec SHA-1: c4de53440923f8e061110dd7d5e82719e2ff78dd SHA-256: 2f83f5cdae3e8b4b42f290f041e20561622d45cc5f2d12100d059d65631a8078
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text promoting free in-game currency for Coin Master, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a likely attempt to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 http://netcdn.tw/app/406889139/free-spins-and-coins-from-coin-master-game-game-hack PDF link annotation
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/coin-master-villages_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/free-robux-content-deleted_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/farming-simulator-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/roblox-critical-strike-cheats_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/console-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/get-me-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/hack-roblox-pin-cod_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/how-to-hack-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnurulislamblc.sch.id/__statics/gudangsoal/files/murder-island-cheat-roblox_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
font_00_sfnt_off00003465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3465 22684 bytes
SHA-256: ee2fa554d24b4f87d8da20becc47cea055fa1d1ab976698a64ba2a01b57efe5e
font_01_sfnt_off00006713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6713 18608 bytes
SHA-256: 2dc78bc9bcc4ebdd572802885893151c1e8df498be6c3c290a8f513ae15145fe