Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcf84d0e0c6e5f2…

MALICIOUS

PDF

43.0 KB Created: 2021-05-17 11:43:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: eaa54196732c66977d58d75f0a880b18 SHA-1: 9db427179bc2a410d0a1ba6e786303f4c9cbc16a SHA-256: 0dcf84d0e0c6e5f276eb2f006f5c1f03a74f0654c165987cad82e76141fd3842
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/free-generator-game-hack PDF link annotation
    • https://bancroftandsons.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/coinmaster-com_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-free-spin-app-reviews_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/how-to-get-free-robux-com_GM431946152.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_off00004a58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A58 26928 bytes
SHA-256: 621d655b6f80d5169719c395a1dd66436d0d02835d8f17e68c2b22b57656b8da
font_01_sfnt_off00008703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8703 17840 bytes
SHA-256: 3a905730409273d870ff573b7baf28e8fde68c17f4b305340d785871e619a609

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