Malicious PDF — malware analysis report

Static analysis result for SHA-256 259d71e8b2c11e5b…

MALICIOUS

PDF

35.5 KB Created: 2021-06-03 12:37:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ddd45b6f209b5ea3c0a62643b03771ae SHA-1: adcaed4ff5d04f75681e11f3569b58229c7b9344 SHA-256: 259d71e8b2c11e5b4016a5078e5daf2c39d9c440b7ef64d9b0d8060eafd61321
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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.
  • 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.online/app/431946152/roblox-hacks-2021-june-game-hack PDF link annotation
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/pokemon-go-free-bot_GM1094591345.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/pokemon-go-free-raid-pass_GM1094591345.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/original-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52FD 28180 bytes
SHA-256: 115f06e48a480baee25dcd62b735124707eede3af1abdc105e266f6cf8200875