Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d9e1624335c355…

MALICIOUS

PDF

40.6 KB Created: 2021-05-12 06:03:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8365ae82804b76662926785c60e32376 SHA-1: 4f7cb2682bd76bf25c1a297d3a213d197a8a6b47 SHA-256: 29d9e1624335c35558e6106c8cc031c257b6587382e0e45d3ab5b6c6668a9639
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/how-to-get-free-robux-with-no-verification-game-hack PDF link annotation
    • https://vierabyragazze.com/upload/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-download_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-official-website_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/como-hackear-coin-master-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_off000043c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43C5 23736 bytes
SHA-256: 592dbc224bacfb191b6e70e31afa7984eb9010c320c72a99cfe376d4f847ad46
font_01_sfnt_off000079c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C2 19128 bytes
SHA-256: acb72b37f9b0a7ac0fa23716fb81d4af9379ab539551c05381b29cd372bdbe33

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