Malicious PDF — malware analysis report

Static analysis result for SHA-256 03df9a673ca60e3e…

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 15:15:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0c21384acf32cd9c3499cdd29cedb93c SHA-1: 7abfe7ec9cee86d0ce459536ad0deb8829f0a66a SHA-256: 03df9a673ca60e3e9f6d5f1368f72a239c90e0ff082285a380a151c873189d8f
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-java-edition-free-download-for-android-game-hack PDF link annotation
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-infinite-robux-hack-apk_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/robux-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-do-you-get-free-rs-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/hack-to-get-money-on-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/wurst-18-9_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-hacks-com_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_off00003312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3312 22232 bytes
SHA-256: 56b90e1a48ada992510cc3f187950f3b458f37ca836fd697c608c4c93e9533b0
font_01_sfnt_off000063c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C4 18856 bytes
SHA-256: c43022659d2334bb80aa9650c1d831b37683b3bffb68bd4d8ca36e01fa2f38bf

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