Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8560e5999a9869f…

MALICIOUS

PDF

44.1 KB Created: 2021-05-14 11:20:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8bd3a7957528abb5e3ffafb661800f5c SHA-1: b501dc123b386d194bc28bb1005a6b73cd7ac595 SHA-256: c8560e5999a9869fcb2f58998dc9c4a574831ec96099d64ac54049eb5155ec05
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to the URL https://netcdn.xyz/app/431946152/claim-free-robux-game-hack. This heuristic firing, along with numerous other embedded URLs pointing to similar scam-like content, strongly suggests a phishing or scamming attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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 https://netcdn.xyz/app/431946152/claim-free-robux-game-hack PDF link annotation
    • https://semanasantacehegin.com/images/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-event-hack_GM406889139.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
stream_003_off000048bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48BC 28640 bytes
SHA-256: ba8591c62cf6f9bc532d61f77a5347251aab99b19a4fdd59575413182492e676
font_01_sfnt_off0000891d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x891D 18696 bytes
SHA-256: 5cf9f9319346d61d0cee7eea738a99b5b91b4687cc89c43f6f5509699f250cff

Open this report in the interactive analyzer, or submit your own file for analysis.