Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5edfb8b607e783…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 05:24:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a92937ef62594b28f026fa078a1e95df SHA-1: b6d380dc7004b0167d3d5d6ef5ae63d4ec0828fb SHA-256: 0e5edfb8b607e783c934b79b8a712576f48195c7e0d080445b24e2afc3709b7a
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/what-is-a-robux-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/free-money-in-any-roblox-game_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hack-de-roblox-para-tener-robux-gratis_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-shirts-templates-survivor_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-glitch-2021-august_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/the-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/download-lag-free-version-of-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/a-hack-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-robux-hack-apk-android_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-cheat-engine-infinite-health_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-gamepasses_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/robux-simulator-hack_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_off00002f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7D 22200 bytes
SHA-256: 465e9d3ade89ab8b44946b3f0a891ede63cd99f182950aff3c675285dc4d8ab4
font_01_sfnt_off000060d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D1 19020 bytes
SHA-256: c4929e2cccccb6c645c3e246f213aba1e3fbbbd784ea000777d464120741ffc0

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