Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae37ce28fe8619a2…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 05:58:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4d5d205343675931121ed4c6d3ce92f2 SHA-1: 8db8509fc69d18b6a8c526a792c8f517b69a3b50 SHA-256: ae37ce28fe8619a2ec9b049fa03f687c2e1d4ca03f00e663af8d620e212c2265
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a link farm strategy, presenting numerous links to external websites that ostensibly offer game hacks and cheats. The primary URL, http://netcdn.co/app/431946152/hacks-for-dungeon-quest-roblox-game-hack, is a strong indicator of malicious intent, likely serving as a download point for malware. The heuristic PDF_SEO_LINK_FARM confirms the presence of a large number of external links, suggesting a coordinated effort to distribute malicious content.

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/hacks-for-dungeon-quest-roblox-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-clothes-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/near-tiktok-free-account_GM835599320.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/master-hack-coin_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-mad-city-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/elemental-wars-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-tshirt-roblox-my-hero-academia_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hacks-for-gold-cards_GM406889139.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_off00002ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECD 22420 bytes
SHA-256: 38df49340dea2ea2ddca70f406badbffdb71e2748b47dd0b4fd6bbc6d7172136
font_01_sfnt_off000060d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D9 19388 bytes
SHA-256: 00aec80dda0eeef940ad0361bbdb6a7915283a6458a773cb47556050ec2fb3b0

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