Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e194e9543715e2d…

MALICIOUS

PDF

59.5 KB Created: 2020-08-30 10:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65bb31be548e6123affcf733aaf7982b SHA-1: 9e0175f7c8c2c4891120f663e6bb4c341b8159af SHA-256: 1e194e9543715e2d8e4079aeaa346cf43b506952669e8684658e23958e853550
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link at https://ttraff.ru/wix?keyword=imperi+carolingi+mapa points to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a potential SEO manipulation or link farm tactic. The document body itself is heavily obfuscated and contains the malicious URL.

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.ru/wix?keyword=imperi+carolingi+mapa
    • https://static.usrfiles.com/ugd/4b68be_8624b553ca964dbe8e8dc4dde665295d.pdf
    • https://static.usrfiles.com/ugd/9c43ec_534a24be45cc4830aec75972b072042d.pdf
    • https://static.usrfiles.com/ugd/b4609a_c0a864f145e64c7485deb6c18c247390.pdf
    • https://static.usrfiles.com/ugd/ec0c41_aee8ae9c5a374f09a14fb4f54ecb3f49.pdf
    • https://static.usrfiles.com/ugd/2ca09c_7450b005b6d24c3e93fe9e073ca01530.pdf
    • https://static.usrfiles.com/ugd/b8c837_b40e569cfefd403abacd2e8377f69114.pdf
    • https://static.usrfiles.com/ugd/ea78e0_f8ebd0e016d74946a7542adaf2ab0a2c.pdf
    • https://static.usrfiles.com/ugd/b8c837_44bc25ebe84f4a8eac3bcbcab4eb8051.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8752/files/staheli_ortopedia_pediatrica.pdf
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/59353705626.pdf
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/12355188993.pdf
    • https://cdn.shopify.com/s/files/1/0466/3443/4725/files/42595197676.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/canon_speedlite_580ex_ii_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/5015/6700/files/generalized_linear_model_sas_enterprise_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/4553/5400/files/25735025823.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_off0000ab89.bin
52b6042e691a544a26eaae142eb48abc2274109dd1a674d3bf1dde877de6ee9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB89 5012 bytes
font_01_sfnt_off0000bc76.bin
8b46123b6d84c935f4698a0af828c3dd054c4a9905ee6e9c5130a72e3611b6ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC76 10844 bytes

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