Malicious PDF — malware analysis report

Static analysis result for SHA-256 20fe54f594c19daf…

MALICIOUS

PDF

34.1 KB Created: 2021-06-30 01:47:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8eb8fec506c8b5d9eb8b072aa4c9c54f SHA-1: 238f41f47c00c67743b17c8561cf3ccbeb5cd1a5 SHA-256: 20fe54f594c19daf090867319e40df64a2eb19c1aa33e09120c57f88f5757d9c
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/getting-cheated-on-in-roblox-game-hack PDF link annotation
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/cheat-code-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/new-roblox-logo-gives-free-robux-robuxian_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/ninja-legends-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-hack-that-really-really-actually-works_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-accounts-and-passwords-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/cheat-engine-64-roblox-bypass_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/agast-2021-hacks-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/wiek-ann-man-sich-robux-hacken_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-do-you-get-free-robux-code_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/code-hub-free-robux_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_off00002ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECB 22176 bytes
SHA-256: 5354fce522895ef8b1fba9c56e923fd8ab17216773e2b3174d6495c1dbd921dc
font_01_sfnt_off00006009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6009 19048 bytes
SHA-256: e70487b1a31e549a72a5b98a57d4c690017211d2c5ecff1c2f56e874c414f9cd

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