Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eee4cdfaa960edb…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 10:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 605441299ff2e8251dfcb7039a98bdd1 SHA-1: ffd0697a3ad2bf80e1c7d8e0c4d9e5db4116d466 SHA-256: 2eee4cdfaa960edb54d7c3b00158d42130793823dd5a3d3f24d0ad6bdf5148dc
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 domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=birthday+cards++free+to+friend', suggesting a lure to a malicious site. The presence of numerous external links, including those hosted on Shopify, indicates an attempt to distribute malicious content or phishing pages.

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.cc/pify?keyword=birthday+cards++free+to+friend
    • http://files.nohokaiproductions.com/uploads/1/3/1/4/131453799/sewafakamopelaziful.pdf
    • http://muneba.trampleals.org/uploads/1/3/0/8/130873951/polaxidikufit.pdf
    • http://files.jodierandolphdance.org/uploads/1/3/0/7/130775071/wobixere-mowozevo.pdf
    • http://files.adozenposes.com/uploads/1/3/1/1/131164425/laxilexoke-bapizeri-piragemaxa.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/932250051.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/search_for_files_using_google.pdf
    • https://cdn.shopify.com/s/files/1/0435/5594/6647/files/82978776548.pdf
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/ziliniraka.pdf
    • https://cdn.shopify.com/s/files/1/0431/4103/8229/files/fosroc_expandafoam_data_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zutowujovepenatugipo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/lediwajibozuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/kusosakakuni.pdf
    • https://cdn.shopify.com/s/files/1/0457/0031/7340/files/react_native_inline_style_vs_stylesheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0406/files/69282585011.pdf
    • https://cdn.shopify.com/s/files/1/0428/6719/6063/files/91898198774.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_off000063e5.bin
ee6fa84bb69be1fbafbdb746a98bc59ad4b7cc800189d21fc73b1a99f90b6454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 5228 bytes
font_01_sfnt_off000075a8.bin
78d95696ad26ec455d53fedd6e19833051e0d20b71380409eddcb02a68258229		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75A8 10300 bytes

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