Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddf3697213d1b9bc…

MALICIOUS

PDF

50.1 KB Created: 2021-06-11 07:00:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e2cc964ea128c1a0ae1416c47f1b73f9 SHA-1: e054086a822e238a35d7998132af08813e6bd576 SHA-256: ddf3697213d1b9bc381a6d2ae4018f2e841cdadb19531995523f841bc9495a86
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are structured as a link farm. The document body, though partially corrupted, suggests a theme of hacking and game cheats, with a prominent URL pointing to 'how-to-hack-someone'. The presence of numerous PDF links, including one to a file named 'minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf', indicates a likely attempt to direct users to malicious or unwanted content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

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 https://netcdn.tw/app/431946152/how-to-hack-someone
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/all-coin-master-spin-link-and-free-download_GM406889139.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-time-hack-ios_GM406889139.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-java-edition-free-trial_GM479516143.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-vip-server-roblox-jailbreak_GM431946152.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-got-talent-piano-hack_GM431946152.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-hacks-com_GM431946152.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-free-download-mobile_GM479516143.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-coin-and-spin-link_GM406889139.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-coins-coin-master-iphone_GM406889139.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/secret-free-roblox-hats-2021_GM431946152.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/www-roblox-com-free-robux_GM431946152.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-name-tag-hacks_GM479516143.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-pc-game-free-download_GM406889139.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free_GM479516143.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-game_GM406889139.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-robux-generator-for-roblox-2021_GM431946152.pdf
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master_GM406889139.pdf
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/scary-larry-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005441.bin
9c6c103edaf9fd86fbf1e0429c5174dbde8dbd87cd0251b4ce5e58900a85323e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5441 25816 bytes
font_01_sfnt_off00009029.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9029 5696 bytes
font_02_sfnt_off00009d3b.bin
9eb8c786ae13a0863f39288184aa69aa88e28ecbdecd34faccc7c531a6bb20d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3B 19544 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.