Malicious PDF — malware analysis report

Static analysis result for SHA-256 330082639390e2f7…

MALICIOUS

PDF

34.8 KB Created: 2021-06-28 14:49:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 248d83e9b295429b784042456cd1e514 SHA-1: 7cf6b22808861fbfd256a375403009e186848164 SHA-256: 330082639390e2f75d347f80d503c3a6cfa03dffad41463b9a59b5391c4b6523
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that lead to a malicious redirector infrastructure, disguised as free game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/mega-fun-obby-games-free-play-online-not-roblox-game-hack. This indicates a phishing or scam attempt to direct users to potentially harmful content or further malicious sites.

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/mega-fun-obby-games-free-play-online-not-roblox-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/400-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-roblox-games_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/username-and-password-roblox-generator-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/larva-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-download-roblox-for-windows-7-32-bit_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-retail-tycoon-116-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-hack-real-no-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/dailyrobux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-any-roblox-games-unlimited-health_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/exploits-roblox-topkek-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbx-claim_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-free-promo-codes_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_off00002efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFD 22404 bytes
SHA-256: 9d599633a221199b4574f96236afb307bc786953a583e0059cc1692b4832ed3c
font_01_sfnt_off000060f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F7 19804 bytes
SHA-256: 668cfc875081870ee44067b2f298eaa53dbe1e4c8a251a7fef26b8fb556afc15