Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07b825ff6397e74…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 01:10:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cce5db200ea27c795a0b02db98f64150 SHA-1: 4981fbfc383cfcb84a216042080478a6c99eeb06 SHA-256: d07b825ff6397e7437b3c62b3e534134a606939784048153c9ede3fbba43e10b
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.tw/app/479516143/minecraft-free-ios-2021-game-hack PDF link annotation
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/free-robux-generator-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/roblox-dex-explorer-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/free-republic-base-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-deutsch_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/free-roblox-boy-hosting-2-7_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/how-to-get-roblox-admin-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/free-parris-island-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/how-to-get-the-guest-boby-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/secret-working-50k-free-robux-code_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/9-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2hsu.sch.id/__statics/gudangsoal/files/roblox-cp_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_off000032fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32FD 22080 bytes
SHA-256: 8e18178984361eb1a891f4c3a06eed17654663c401ba0af98cdff593d9e7e12d
font_01_sfnt_off000063b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B1 18400 bytes
SHA-256: 2bf844231399acc5cf711acb9faf8aedd609a9c8605d8b3f0076c20fc980fe80