Malicious PDF — malware analysis report

Static analysis result for SHA-256 30190999c69b8539…

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 20:17:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 611b1f6c169ca03dca090bd67e22ea31 SHA-1: 2bf97b149d8befd6c1b3ac2ff27f4a08a423e8fb SHA-256: 30190999c69b85395c4a61906b23e26fb37aed1f02fadcb1c9c08ba98595ad7e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links and a document body that promotes game hacks and cheats, such as for Coin Master and Roblox. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the 'ML_NYX_PDF_MALICIOUS' score is very high, suggesting malicious intent. The primary goal appears to be directing users to potentially malicious websites via these links, which could lead to malware downloads or credential harvesting.

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/406889139/how-can-i-get-free-spins-on-coin-master-game-hack
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/master-free-spin-and-coin-link_GM406889139.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-using-es-filer_GM406889139.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/how-to-hack-someones-account-on-roblox_GM431946152.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-youtube_GM431946152.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/coin-master-pet-food-hack_GM406889139.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-35-33_GM406889139.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/easy-coin-master-hack_GM406889139.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/roblox-hack-no-verify_GM431946152.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-jailbreak_GM406889139.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/free-roblox-ad-maker_GM431946152.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/roblox-free-download_GM431946152.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/survey-information-sheet-for-free-robux_GM431946152.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-2021_GM431946152.pdf
    • http://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9_GM406889139.pdf
    • https://elearning.mtsn2magetan.sch.id/__statics/gudangsoal/files/roblox-hackers-list_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003232.bin
a06b81c95554f95ed64e6eec3188e983eb0cf864021743ad16ff5fa20eaa9456		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3232 23148 bytes
font_01_sfnt_off0000664f.bin
37ca97c2691b43cd452b048f4f7c78c5ad4d0dd2b0202caad78cb0ffb9f2e73b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x664F 18336 bytes

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