Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad960929784ccec9…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 07:26:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 923e3d6d25b95b847360173c6be153e3 SHA-1: 8b5d951cef27c014e062606cca44d3ddbe4b7fc2 SHA-256: ad960929784ccec98a9468219d74c2df6dfa64880faaf561a2d741a2e18a24c6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are presented as download opportunities for game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs and a link farm heuristic further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall structure and content suggest a phishing or malware distribution attempt.

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.tw/app/431946152/how-to-hack-a-roblox-account-2021-on-ipad-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/admin-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-how-to-kick-players-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/spped-hack-2021-november-for-roblox-the-last-avatar_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-server-side-roblox-executor_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-robux-hack-no-survey-android_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/lua-injector-script-for-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/blackhawk-rescue-mission-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/imzyf-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-us_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/roblox-promo-code-to-get-free-robux_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_off000030f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F2 22228 bytes
SHA-256: b86dd8067c0fa7809a610eba4a312339ab59542b03aa2fa4751ec35c08c12706
font_01_sfnt_off00006239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6239 19628 bytes
SHA-256: 128c06998df4edab624c4e6c041b6d8f0df775374a509bb8dcd2c131f899cf4f

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