Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e5dd39ddfe530a…

MALICIOUS

PDF

56.8 KB Created: 2020-08-04 07:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d25dbaa7d09d39fcf0370c3c4e2b688 SHA-1: 07de62ebf99df3dfc30498f5fb913e97ef23eac1 SHA-256: 56e5dd39ddfe530a22fe722febfea3d8e0018f95c6c3049017259c1a6bead576
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary URLs, https://ttraff.com/pify?keyword=boska+komedia+piek%25C5%2582o+pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL, indicating its likely purpose is to lure users to malicious infrastructure.

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.com/pify?keyword=boska+komedia+piek%25C5%2582o+pdf
    • http://files.uscmtr.com/uploads/1/3/1/6/131636644/4193670.pdf
    • http://tefizewi.ciscotool.com/uploads/1/3/2/6/132681026/gesof_girovuxa_rekividites_susufewopokovar.pdf
    • http://files.franciscanyon.com/uploads/1/3/1/3/131382330/0131c07808e0785.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/soxolosalupozomivetipod.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xaxigeruver.pdf
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/97985290432.pdf
    • https://cdn.shopify.com/s/files/1/0429/8126/1466/files/visolenusamiseso.pdf
    • https://cdn.shopify.com/s/files/1/0433/8948/5221/files/66231780247.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/75974864124.pdf
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/mixifukipuvij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9059/2422/files/tirepipalukurisade.pdf
    • https://cdn.shopify.com/s/files/1/0432/7686/1606/files/modezomasefafo.pdf
    • https://cdn.shopify.com/s/files/1/0437/2057/3080/files/poe_granite_flask_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0435/0876/0735/files/concepto_de_administracion_hotelera.pdf
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/siwizedip.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_off00009d41.bin
042e8ea3c5421f28be59335a62212ae44135ac0d013c5a768484485526c45365		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D41 5228 bytes
font_01_sfnt_off0000af0c.bin
2bf9e2815ba9a2640a19b25f533a4cdef68702ae2d52f05d1b456745df1f5e43		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF0C 11812 bytes

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