Malicious PDF — malware analysis report

Static analysis result for SHA-256 983349a372f94cc8…

MALICIOUS

PDF

47.9 KB Created: 2021-06-13 17:55:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1bb7b4a55f3d63fbf81d3b675374088a SHA-1: 177d9c20cc2cf54430aacde7759b23cca12fe2ac SHA-256: 983349a372f94cc86ff80673cd1daf558ce3fe684432eb69f2cafc440d3777c2
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to 'netcdn.co' which is flagged as a malicious redirector. The document body also contains text related to 'Roblox Cheats' and a URL that appears to be a direct download link for a ZIP file. This suggests the document is designed to trick users into downloading malware disguised as game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 3

  • 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-cheats.zip-file-size-813-kb-md5-value-94bfbfb41eba4e2021202111f2021f6-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/which-pubg-uc-is-best_GM1330123889.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hacks-to-fly-in-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/pubg-uc-in-pakistan_GM1330123889.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-one-piece-unleashed-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-cheats-for-operation-scorpion_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-dto-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/fre-department-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/cheat-roblox-ro-ghoul_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hay-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-without-doing-anything_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
stream_004_off000054f7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54F7 26208 bytes
SHA-256: bf7eedb5fac758672d706d6e18a28cf0e50e185b3e899f1af6809e5608b189ef
font_01_sfnt_off000090e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E8 20848 bytes
SHA-256: a917bfe8e933690a305c4c518fc80c39f35d1e85bb3725ca34bdc8e3e4dfd15a

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