Malicious PDF — malware analysis report

Static analysis result for SHA-256 5097b346047489d9…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 00:34:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9ac8433bdc7932b9e852f9417393db0e SHA-1: 6a6aef5e1f29e8658dd47afc90009d61c9021574 SHA-256: 5097b346047489d9ec88923c9613f6b292a4f753fe118fcbdd5acc28dfc966b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and text that promote 'game hacks' and 'free currency', specifically mentioning Roblox and Coin Master. The primary URL, http://netcdn.co/app/431946152/how-to-hack-roblox-accounts-2021-no-download-game-hack, is flagged as a malicious redirector. This indicates a social engineering lure designed to trick users into visiting a compromised or malicious site, likely for credential harvesting or malware distribution.

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/how-to-hack-roblox-accounts-2021-no-download-game-hack In PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/cheating-on-someone-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-money-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-prevent-free-model-hack-for-roblox-sudito_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-game-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-free-robux-points_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-new-free-hair_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/get-free-robux-here000webhostapp_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-and-tix-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-candy-van-mesh-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-with-no-verification_GM431946152.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_off0000303a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303A 22436 bytes
SHA-256: 83aa75e6016b6b7e4b230b19e96481536ca244a9d8a426faf8a771a4d1928227
font_01_sfnt_off0000620b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620B 19808 bytes
SHA-256: a8397f75cf3fbf86c07dc5054265f4f1e3b415e2351cd4c7057c36bc39b62a2f

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