Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6266c0115477ff6…

MALICIOUS

PDF

39.4 KB Created: 2020-08-11 19:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4da6234da27ba174868160db1ad762ff SHA-1: b5574edc766e367ebe4c8583bdabf39b0b26c440 SHA-256: e6266c0115477ff6a34481157613dbed4522d142f4010e3bc0852a3a625162ec
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a PDF link farm. One of these links points to a known malicious redirector. The document body appears to be obfuscated or corrupted, but the presence of the malicious redirector URL and the mass linking behavior strongly suggest an attempt to lure users to malicious content or manipulate search engine results.

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/pify?keyword=botulismo+perros+pdf
    • http://files.shannonsbling.com/uploads/1/3/0/8/130814187/3186208.pdf
    • http://files.petlawninc.com/uploads/1/3/1/6/131606583/5161619.pdf
    • http://files.shindigpublishing.com/uploads/1/3/0/9/130969172/lemewotuna.pdf
    • http://wokiti.hunterwrestling.com/uploads/1/3/0/8/130874359/xozojuzaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8172/files/data_studio_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6161/files/zoforezegagavajuf.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/51135065091.pdf
    • https://cdn.shopify.com/s/files/1/0434/5711/8374/files/tusefevufixuralawabe.pdf
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/85337534073.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93880590480.pdf
    • https://cdn.shopify.com/s/files/1/0440/1355/1781/files/biwinebumidalogowomexo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/gipenogizala.pdf
    • https://cdn.shopify.com/s/files/1/0440/6339/1894/files/ap_grama_sachivalayam_2nd_merit_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/90509043041.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_off00005f47.bin
6e1761e31817b24c8f02b16f9252ac4442cb6589cad191a773ec4a97b447cb1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 5024 bytes
font_01_sfnt_off0000704a.bin
431606b0fd416f979f75261c6e8949731e65c67dfe9ce97755d98b9775166a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x704A 9520 bytes

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