Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a47b2cd7c3ca08…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 09:54:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0ea193545e929b4c548254374657ea3f SHA-1: d749e02d81d651fa15c84aca9717789456c667a0 SHA-256: d0a47b2cd7c3ca08f1eab87aaf4ca5f31e97403756f9a9503387c3d7013c114a
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/479516143/how-to-make-a-minecraft-client-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-bots-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-offers-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-bluestacks-hack_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/husky-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coinmaster_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/pubg-uc-whatsapp-group_GM1330123889.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-legal-easy-and-fast_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_off00003146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3146 22076 bytes
SHA-256: 069aa3b9550f27a715b981a1cdfa15236962fbd6858146baa6206ae99004d7a6
font_01_sfnt_off00006205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6205 18408 bytes
SHA-256: 03295cd4a5569e9f8ae37183c20a7c8b763471bbe644b379d72bcd702fe4c2ec