Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe05183d776236e…

MALICIOUS

PDF

45.0 KB Created: 2021-06-13 23:14:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d75698ac7d55e207e59dab6cd1a2f271 SHA-1: 3a660926245ef6c44e98071c13a22ea4577efaef SHA-256: ffe05183d776236ed6d4b3c4a2a131a7a5c6c27a6762d855e5a126030692e1a5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous embedded URLs, many of which are presented as download links for game-related cheats or hacks. The ML classifier and PDF link farm heuristics strongly indicate malicious intent, likely to trick users into downloading malware disguised as game enhancements. The document's content and structure suggest it is part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-get-money-in-adopt-me-roblox-for-free-game-hack PDF link annotation
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-rc7-free-download_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-hacking-packs-for-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-roblox-account-on-mobile-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/hack-mad-city-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-rank-up-in-a-roblox-group-easy_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/before-dawn-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-hack-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/cant-play-any-game-roblox-gor-hacked_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/best-way-to-make-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-free-body-bundle_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/https-webrobloxcom-catalog-202163-hair-free_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-lumber-tycoon-2-free-vip-server_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/como-hackear-phantom-forces-roblox-2021_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
stream_003_off00004d4f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D4F 28912 bytes
SHA-256: 03d656223220a6f3cd536c4ec8c7bbc26d7e2fb25fbdc4d38ecb620ae3b5dbdd
font_01_sfnt_off00008ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA4 18940 bytes
SHA-256: 7ccd088a9b11e910550b40b2567beaaa4bb803e4e8166cdadba90e98a37aac31

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