Malicious PDF — malware analysis report

Static analysis result for SHA-256 e68c1cebf1806bf7…

MALICIOUS

PDF

35.0 KB Created: 2021-06-17 19:21:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1cf0f8fd538b268a94e5c96260a72fa0 SHA-1: 6e822d9130bf9ac936dd981576cdb2aac9b0d791 SHA-256: e68c1cebf1806bf7a7189f892a0cbbad932c03e028e0771d9e450b7cd978cadd
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.co/app/431946152/robloxgiveaways-top-roblox-hack-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/pubg-uc-no-verification_GM1330123889.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/base-raiders-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/cheated-roblox-gun_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-denisdaily-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-servers-for-roblox-super-power-traing-simulator_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/what-does-ce-stand-for-the-hack-for-roblox_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_off00003007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3007 22524 bytes
SHA-256: e8fdd42a47053da70e484204806889adc12ca97cba4db8a8cbb820d63b6d6830
font_01_sfnt_off000062ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AC 19408 bytes
SHA-256: 1a27ae672dba6f4a9c9e7a63f9a87f917f0af6fab8d30ccfbe6e9d0da2d12dc7

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