Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5a217b7abf2ba7…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 12:26:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 24112f4e712680f4dca26e9bcde84642 SHA-1: 2cac27117a56968fdf362f04d0725e975b230bdb SHA-256: 0d5a217b7abf2ba7b58e8e2e9ba64bececfe5b87e01cee1d456b11e2319c8ee9
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.co/app/431946152/how-to-get-free-robux-google-game-hack PDF link annotation
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-tiktok-emails_GM835599320.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-hack-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-generator-codes_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_off00003095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3095 22208 bytes
SHA-256: 943ace93fbfef38bdd41a56671df55a27f5e679ba209c8044a7da38375e638c4
font_01_sfnt_off000061b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B5 19056 bytes
SHA-256: eae788003faa03d6963e41757536fa186fd0d9236f24dfeb3529e9d02da1e8cf

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