Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ced09b62190b1da…

MALICIOUS

PDF

41.0 KB Created: 2020-09-03 09:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c981d170927ed33bf47b3cc31f5f1bd SHA-1: 477b30229fde6c8bbfb03fd3d5ad86c0d9488b6b SHA-256: 9ced09b62190b1dad566bc298725b92ae6a303ac8addc79e7ee955c229f63e9c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text that appears to be a lure for free downloadable content, specifically mentioning 'bootstrap cards template free'. The primary heuristic indicates a malicious redirector link, and the presence of a link farm further supports a malicious intent to drive traffic to potentially harmful sites.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.me/wix?keyword=bootstrap+cards+template+free
    • https://cdn.shopify.com/s/files/1/0433/5013/0846/files/best_hollywood_movies_sites_in_hd.pdf
    • https://cdn.shopify.com/s/files/1/0450/3647/0430/files/libro_de_logistica_y_cadena_de_suministro_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0434/8172/7129/files/metaphysical_poets.pdf
    • https://cdn.shopify.com/s/files/1/0430/3201/9097/files/manga_studio_free_download_full_crack.pdf
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/emerald_tablets_of_thoth_free_download.pdf
    • https://static.usrfiles.com/ugd/ca300b_0fa3cd4c4415497f8e79af4eae7e4f5e.pdf
    • https://static.usrfiles.com/ugd/87d215_6af8bd6517c14b38ab689c8d5b53be78.pdf
    • https://static.usrfiles.com/ugd/12daa7_3394e8c64a164915a9a85313524137f2.pdf
    • https://static.usrfiles.com/ugd/6908d7_526259ea93ff488a86cc51a3b341cbff.pdf
    • https://static.usrfiles.com/ugd/ab059d_44d34320a8464f0ab18b747d87bad018.pdf
    • https://static.usrfiles.com/ugd/24853a_13a499e37d284aa89c5f3f860eb3d4cb.pdf
    • https://static.usrfiles.com/ugd/c8d394_7a149027ccce49b796244c20384bc6d3.pdf
    • https://static.usrfiles.com/ugd/b88e3d_b37d9c73580b477386b1826a31faf4e6.pdf
    • https://static.usrfiles.com/ugd/f4de5e_39be0c782f074414ac411c5a2e5d25d8.pdf
    • https://cdn.shopify.com/s/files/1/0462/5255/6437/files/summerslam_2018_results_bleacher_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/pivukijima.pdf
    • https://cdn.shopify.com/s/files/1/0434/2621/8134/files/pet_practice_test_listening_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/jonagurosuk.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064ed.bin
289636ca464976d42a78a54fa6a539e577dc6b2ab2659ce46b2ceaa02e7c24aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x64ED 5348 bytes
font_01_sfnt_off00007704.bin
6c909afbcd24ced2ab2b820bde17426ede583cfa34976c138709b2c17e656f8a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7704 9296 bytes