Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e27a85cd892584c…

MALICIOUS

PDF

33.7 KB Created: 2021-07-10 00:17:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0068876d5a33a37a63b020f0187a903e SHA-1: 39f1a2de907f62f9d6077667db933efc61ed3bd5 SHA-256: 8e27a85cd892584c56742d2f037b664d384057cc1de70ad9d5e800052ffa8007
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/free-minecraft-server-game-hack PDF link annotation
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/gaming-cheatscom-roblox-us_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-haiir-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-robux-robloxlover_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/como-descargar-hacks-de-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-robux-no-password-plus-link_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_off00003180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3180 22008 bytes
SHA-256: a3c7004f11264ba5c4e07275c101cef80cb6e7c4e87351495d4c0882c6368382
font_01_sfnt_off000061f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F3 17968 bytes
SHA-256: 467ba59745922621ddb9e57f68c7b79a6418f7a75fac5793c5b2ba4d9bdeb419

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