Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0eaa045d810958f…

MALICIOUS

PDF

45.8 KB Created: 2021-05-15 09:03:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ae7407f00d5e6a6f0b1fbee9a73f80f7 SHA-1: 19ce7f5897673a69f7cafb594a1b98fd1b189d30 SHA-256: f0eaa045d810958faba0447ed185c61b3219b68ece7d131a409a5dee69e26933
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 0.9432

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-robux-com-real-game-hack PDF link annotation
    • http://www.salwangurgaon.com/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/easy-robux-today_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spins-no-generator_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
font_00_sfnt_off00004b2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B2D 24352 bytes
SHA-256: a67851a696b3bdf7f8939b3a51d2bdd96640477ee1e206877d3566ac700f13c2
font_01_sfnt_off0000830d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830D 3528 bytes
SHA-256: bf6aaaa14203a4129428cfd6622c1c3831c774ba36d143ff8c80607388ff9b2c
font_02_sfnt_off00008f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F84 18576 bytes
SHA-256: a83edd52c2be056a67ce389c2e3103e44ea5f6bc4cdf4c28a35d8553f09f80ba

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