Malicious PDF — malware analysis report

Static analysis result for SHA-256 245e1650a2850cea…

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 17:55:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: dad5be3415d285f5650eab27b514c81b SHA-1: 6576633bb261232a4aac5be99e778051bb30c74d SHA-256: 245e1650a2850cead4b5ef9c5d27af52ae48339b63a25131c551a8b80534393c
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/406889139/coin-master-free-spins-link-blogspot-game-hack PDF link annotation
    • https://library.elkatarie.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/find-what-game-a-roblox-player-is-playing-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-i-dont-feel-so-good-simulator-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-roblox-novemever-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-cheat-codes-mega-fun-obby_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/youtube-roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-free-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/the-rake-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/get-everything-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/scp-2021-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/robux-cheaten_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-melissa_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-2021-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-by-just-generating-survey_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
font_00_sfnt_off0000319f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319F 23192 bytes
SHA-256: 9f4b4e6c18d3acaa9c4dc28f40ac64c2c3a0f389379e03c5b37cbc11bfa2a8d2
font_01_sfnt_off000065f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F3 18632 bytes
SHA-256: 70d110fa91f8f5109d35ee19b5cb9f0e88531cce786125e31518185453264350

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