Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0916cd02b0bd7b1…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 13:33:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 92b37bff0ef8aff050c80d326bf7890c SHA-1: 3fd8a72bf6998602661ba1da9485e1cf98873e21 SHA-256: a0916cd02b0bd7b1740ce5f882cda091a265a10512e2307ae643e2c6a6fb0185
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 0.9980

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 http://netcdn.co/app/406889139/coin-master-daily-free-spins-link-today-game-hack PDF link annotation
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/wurst-client-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/tiktok-free-watermark_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2palembang.sch.id/__statics/gudangsoal/files/free-robux-download_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_off0000305f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305F 22500 bytes
SHA-256: 9d6eedf55322ec4a89693758239b06ae360fe93310ac34ceaf24678bc622df67
font_01_sfnt_off0000628a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628A 18940 bytes
SHA-256: 5cc00af5396ac6d0bbe2617822e874747972297797067d6a5c9a01e6a5c32b4c

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