Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59621acd3d70889…

MALICIOUS

PDF

42.1 KB Created: 2021-05-15 15:41:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ab4ee15314abd2d92b42b5135a73d6f0 SHA-1: 09a7182b0880025cce220c3565d523d780c3378e SHA-256: d59621acd3d7088987408ce2e4d25f68831ab931daf8ba47ee41770cf6b6afd7
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 0.9971

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/rbl-gg-free-robux-game-hack PDF link annotation
    • http://brokermortgages.com/images/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/minecraft-wurst_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/corn-master_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/free-coin-master-spins-2021_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_off0000473d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x473D 26624 bytes
SHA-256: 39e3bf6614e89191c22d959428fa195cfa730b4a62fb9ba90f4462e6f2e422da
font_01_sfnt_off000081f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F6 18376 bytes
SHA-256: 36d8e5c8df31ce5774558eb4dff236d908794f1052653b7bf9d7a2310610d2b4

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