Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f5ba1d9cd07916…

MALICIOUS

PDF

46.0 KB Created: 2021-05-10 13:32:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b51004fd49a8dd976b6d108b299d0788 SHA-1: d8a83435c78a339adfc812bac4b9f3238434a9fe SHA-256: 59f5ba1d9cd07916436af2e5ed9a8b5f5fcb59ae3c80ea8a9d32cabbd7f67ed0
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 0.9432

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 https://netcdn.xyz/app/431946152/roblox-free-bundles-game-hack PDF link annotation
    • https://www.labdagatismk1pundong.com/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-coin-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c02.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C02 25680 bytes
SHA-256: da28694961c529bd60c9c39a4066f76d9afbe91f8ea2f74e0e3cb9f81f7fc0a1
font_01_sfnt_off00008797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8797 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9148 18260 bytes
SHA-256: ed73f26fe39a6ceec3b8cb9f78cb2769c99c91aa7d74f7e016d55c21fe231794

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