Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee579ef4d2adb9dc…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 09:59:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d55a16b85245e7ec396749ab362fa1aa SHA-1: d4e4c362a0ec4ac76cf153ab8625be36c3b8faa6 SHA-256: ee579ef4d2adb9dc2d481633a780370c0ccb09d5f3c5bdcedd8113b385fb509a
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 0.9980

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 http://netcdn.tw/app/431946152/free-robux-codes-no-verification-2021-game-hack PDF link annotation
    • http://xenonsvjetla.com/files/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-com-cheats-for-money_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/break-free-by-ariana-grande-roblox-id_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/como-hackear-robux-facil-ordenador_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-catalog-items-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/win-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-hacks-hub_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-kazok_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/earn-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/download-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/cool-free-roblox-girls-hair_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4F 21832 bytes
SHA-256: ede8a50faa6d7c15c81ae97d3d470dff5b2e2b342e1806d8f78cd6a2a51f161b
font_01_sfnt_off00005d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5E 19648 bytes
SHA-256: c9b5e446bd4f49308c598e64be383601662d64f1913011d813836102a9eea03a

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