Malicious PDF — malware analysis report

Static analysis result for SHA-256 f59c1c050c78be6a…

MALICIOUS

PDF

44.0 KB Created: 2021-05-12 23:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2f5eba707560e9e6bfc69a2e43e8683d SHA-1: 6a44373bb9a3df78b77b152c9888672e8bccf3f6 SHA-256: f59c1c050c78be6a28ecc5dcce880b5904835502091f6c8c6c04b1a10c1d1d36
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 0.9969

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/406889139/how-to-get-free-spins-on-coin-master-ios-game-hack PDF link annotation
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://me.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c76.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C76 27208 bytes
SHA-256: 13c6852705f6d18a0fa4cbe7a34147806995c0d3dea5b50804bbcb60ede17b13
font_01_sfnt_off00008a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8D 18052 bytes
SHA-256: 751b5bf5e2baa224d49100cdcfdcfacb8a421785831d1efd4091db32238aca98

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