Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e4a79b164491d6…

MALICIOUS

PDF

39.7 KB Created: 2020-08-29 23:07:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75026b3eceaa4e644b63a7a68bab2420 SHA-1: 8e5702cd9f24f9df845b58880a0ea2ab70aed3aa SHA-256: 26e4a79b164491d6e68358dd46e93bc4422be005f883de28e83516440052b1f3
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 firings indicate a PDF link farm designed to host numerous external links. The primary malicious URL identified is https://ttraff.com/wix?keyword=the+eleventh+plague+characters, which likely serves as a gateway to further malicious content. The document body itself is heavily obfuscated and contains references to the malicious URL and other Shopify-hosted PDF files.

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/wix?keyword=the+eleventh+plague+characters
    • https://cdn.shopify.com/s/files/1/0434/7474/7545/files/vepinofo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/48363995059.pdf
    • https://cdn.shopify.com/s/files/1/0465/3721/2063/files/the_evil_within_tatiana.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/zasowexujunazojilufepajob.pdf
    • https://cdn.shopify.com/s/files/1/0435/9438/3522/files/canon_eos_rebel_t5_1200d_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/7423/1199/files/perutu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/how_to_electronically_sign_a_on_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0432/2885/6477/files/analytical_writing_gre_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/0025/1036/files/pevuretego.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/gta_cheats_vice_city.pdf
    • https://cdn.shopify.com/s/files/1/0430/0816/3993/files/88030730137.pdf
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/baixar_livro_o_servio_social_na_con.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_off00005f49.bin
c577df44d3c86b5f99117bc8892f180927f18a617aa107ffc296f8dd05912e6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F49 5204 bytes
font_01_sfnt_off000070f1.bin
b161825cc5939b79271e936e84708f832a2dc4feb881cb824c99ecc7a6c8fc7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F1 9952 bytes

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