Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a2e26bf8c81b5a1…

MALICIOUS

PDF

35.1 KB Created: 2021-07-01 21:22:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: de23c6169ce024c62a41dc3109fc4911 SHA-1: e20e4b00f11114525ed05ef7dba56128a1b72ebc SHA-256: 9a2e26bf8c81b5a18a06dfa253708c604141d75fa901ce0032a19b341c3db27c
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/431946152/5-robux-for-free-game-hack PDF link annotation
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/pokemon-go-free-hack_GM1094591345.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/kick-from-roblox-after-open-cheat-engine_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/dgeler-rocach-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/coin-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/free-roblox-hack-logiciel_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/banditmask-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3kotabjm.sch.id/__statics/gudangsoal/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off0000323a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x323A 22696 bytes
SHA-256: e643548168600d023b950fdcdf773bf77c0a1908d4fe629ae55a6b10296ff22d
font_01_sfnt_off000064de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DE 18848 bytes
SHA-256: 165b29d63d6e6b074aea24c5e69a1e6f170b016e6c4fec06f78f701b6bbc5557

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