Malicious PDF — malware analysis report

Static analysis result for SHA-256 670e0358f79fe9c7…

MALICIOUS

PDF

46.7 KB Created: 2021-05-12 08:13:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f3f3f472d34d47a4f5d493e907c0fdd3 SHA-1: ca9503843ebb660fa610cb0dbc83ff6c6827b8f5 SHA-256: 670e0358f79fe9c7e79be0bfb6fdca87cd0344d87244fdce40f8d30555979221
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to websites offering 'free game hacks' or currency, a common lure for malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for further payload delivery or phishing. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/rblx-city-free-robux-game-hack PDF link annotation
    • http://pspmrsmbpj.com/opac/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_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_off00004a6d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A6D 27376 bytes
SHA-256: 042702370f724457c8323b0165d78b17fbf71b3c9905ce162e0dc5056870b8d4
font_01_sfnt_off0000895a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x895A 2972 bytes
SHA-256: fe1b64b9eb208bd08d0f8bfa63e14d484da307fb8ec7450e4681975ddc03d50e
font_02_sfnt_off00009398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9398 18492 bytes
SHA-256: 8c36c54b235ee774b4288e3a660071bec0b4f54d4ae0ca28de0be66b92090129

Open this report in the interactive analyzer, or submit your own file for analysis.