Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad918686e02786e…

MALICIOUS

PDF

34.7 KB Created: 2021-07-02 05:39:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a5d7700f947e1873302ead81343ef49a SHA-1: 093b19b182fd6b83d6af92b7188ddbd82b4df53c SHA-256: fad918686e02786ee4d9fd861804315b2c169382a33774517e938a81889f7336
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into downloading more malicious files, disguised as game hacks or cheats. The primary redirector URL, http://netcdn.co/app/431946152/roblox-rocitizens-money-hack-game-hack, is flagged as malicious infrastructure. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or phishing.

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/roblox-rocitizens-money-hack-game-hack In PDF document text
    • http://global-brand.net/userfiles/files/roblox-admin-gui-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/soros-roblox-hacks-pastebin_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-find-out-roblox-speed-code-for-speed-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/minecraft-mojang-free_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/descargar-roblox-hackeado-para-pc-2021_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-thinknoodles-free-fall_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/outfit-hacks-in-royale-high-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off000030af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AF 22004 bytes
SHA-256: 9437fdf59902adb2a748025ee20eec5270ad092d5952c0a9afbef5a1ec2e16f5
font_01_sfnt_off0000616c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616C 19336 bytes
SHA-256: 51b2e6b317f4c758e88bec058572dc1b8844492c0104bd0cfc958498d0e38041

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