Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bc2d912e597dcaf…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 10:34:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b53d1ac6780dedff4ba6aa427699e54d SHA-1: 102231b34b873da6766a18caddf028915f6afacb SHA-256: 4bc2d912e597dcaf04f9118981e0bdde9e182d58b1f33e6a42ad0a370428973f
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/how-to-hack-roblox-life-in-paradise-free-download-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-2k-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/wurst-mc_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/pastebin-robux-hacks-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/face-made-when-roblox-was-hacked_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-brown-pant-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/best-free-hoodie-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-phanthom-forces-credits-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/comment-utiliser-hack-book-one-piece-roblox-quelle-touche_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-models-in-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/denisdaily-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-ashar-qaseem_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-printables-free_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_off00002f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F66 22364 bytes
SHA-256: 2088f3b0c7be925bb6ec5acd67cf6cec620764fde361569b4db1e4eb6f847df0
font_01_sfnt_off00006152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6152 19600 bytes
SHA-256: 071d0a515398cea398f38c64cf8ab5e5dd24857bb83e14e7411e680473348dbb

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