Malicious PDF — malware analysis report

Static analysis result for SHA-256 2febe86a0eb82e57…

MALICIOUS

PDF

43.6 KB Created: 2021-05-13 11:01:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 70c490a09ddc32cdb69e9d6c38e720e0 SHA-1: ef79f227e7d65b4b687740c345786a559361cbd1 SHA-256: 2febe86a0eb82e5746f2501c23943cf127c9e19a2b1c2bb38c7461b7df1b379a
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 0.9969

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/431946152/free-robux-for-free-game-hack PDF link annotation
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/robux-giver_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.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_off0000497e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x497E 29076 bytes
SHA-256: 1b811faa93b876122437fb103dc895241fb759b04b2facc52ebe9e59cfad347c
font_01_sfnt_off0000892c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892C 18012 bytes
SHA-256: 3ef9e48aa3d97d4217e004f7625a8cbae9320a74231b80a01553f6433e422360

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