Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce7e84f6cd94052…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 02:03:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a0fe3c2d17371fea4a980b7490218352 SHA-1: 26361c5519dd5469e0dae5a7b38e2f9cb9b6d2e2 SHA-256: 3ce7e84f6cd94052f258f731ad29c87d2273b26e723160d5f7323d0a25143c4b
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/431946152/free-robux-no-verification-no-survey-game-hack PDF link annotation
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/robux-earning-sites_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/bad-business-cheat-roblox-tuto_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/pubg-uc-price-in-nepal_GM1330123889.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/free-clothes-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/a-free-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/how-to-hack-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/hack-someone-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1pacitan.sch.id/__statics/gudangsoal/files/get-free-cards-in-coin-master_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_off00003190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3190 22224 bytes
SHA-256: 1d26698cf42d8a3a3fc576dd864296fac5e16ad350bcb10aab4b94e2fac52b97
font_01_sfnt_off0000632c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632C 19368 bytes
SHA-256: d2bc0c8d4e358c38b8ed3dc3975a0dd6f30757aab53430b3c6877dec44a024de