Malicious PDF — malware analysis report

Static analysis result for SHA-256 c60a80c1ec398024…

MALICIOUS

PDF

35.2 KB Created: 2021-07-01 13:17:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 974aa0d50c7ec47c2246dbb4a09cbe57 SHA-1: e4e89e8ee9ada1a0a224e44e31045fdfb3fc296c SHA-256: c60a80c1ec3980242a48ec0fde6a3e2165e1b96dcf940b7c665b35b42fa150ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items to trick users into clicking malicious links. The embedded URLs, such as http://netcdn.co/app/431946152/free-stuff-game-roblox-game-hack, lead to known malicious redirector infrastructure. The document's structure and content strongly suggest it is part of a phishing campaign designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/free-stuff-game-roblox-game-hack In PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-catalogue-free_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-robux-hack-game_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-roblox-money-codes_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-re_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-how-to-play-paid-games-for-free_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-esp-hack-script_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-maps-free-download-online_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-sword-hack-script_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off0000316b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x316B 22760 bytes
SHA-256: 12e41a6c6474070bdaee6a5bafc5e2a7fc23394eaffb5830d11d61c4a4dc42ea
font_01_sfnt_off0000642f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642F 19152 bytes
SHA-256: 9899174e5c8e931959f0f854245f1f75e23c4622326b480b0a2a7b153b8fb222

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