Malicious PDF — malware analysis report

Static analysis result for SHA-256 386028666f30f244…

MALICIOUS

PDF

33.5 KB Created: 2021-06-26 11:37:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9148bcba796e959e556b7912e6525ad8 SHA-1: 0974321fa508cc45065013bc4648bd706fab2a7e SHA-256: 386028666f30f2445356a54b3b3ebdef59b22b7bad1fa175799bf66050201a4d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' for popular titles like Roblox. The primary link, http://netcdn.co/app/431946152/hack-robux-trong-roblox-game-hack, is identified as a malicious redirector. The document's content and structure strongly suggest a phishing or scam attempt designed to lure users into clicking malicious links, likely leading to further malware downloads or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hack-robux-trong-roblox-game-hack In PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-speed-hack-scrin-2021_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-girlfriend-cheating-video_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/how-to-get-free-stuff-on-roblox-computer_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-one-piece-millennium-stats-hack-script_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/pubg-uc-shop-qatar_GM1330123889.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-account-stealing-hack-by-kingtennisbal_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C94 22576 bytes
SHA-256: 968eab900e5b694f927fe0b61d569f87e74826201ba798a983eb3453df8a705e
font_01_sfnt_off00005eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB8 18796 bytes
SHA-256: 34873fbab5361984952896e1d4082c0b2c518d5ba145819b49cd3c33e03b7c54

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