Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d5f209344cd23e3…

MALICIOUS

PDF

35.8 KB Created: 2020-08-24 20:53:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58efe71b63c3597572f51eaa24120dc4 SHA-1: e5a6a059a3467c8a8428b24c629638382046a498 SHA-256: 1d5f209344cd23e3bf7e52611bb6433bcfe7251cbf087963f4084ca7e07a318f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to PDFs hosted on Shopify. The document body contains obfuscated text and the malicious URL. The primary intent appears to be SEO manipulation or redirecting users to potentially harmful content via the 'ttraff.com' link.

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=zinoleesky+agbagba+firi+yoyo
    • http://sazavimar.iamwowblingonabudget.com/uploads/1/3/1/6/131606727/fezubinides.pdf
    • https://cdn.shopify.com/s/files/1/0429/2981/5711/files/56597674842.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/rubew.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4743/files/65067842158.pdf
    • https://cdn.shopify.com/s/files/1/0432/7469/8902/files/86296963130.pdf
    • https://cdn.shopify.com/s/files/1/0433/3587/6776/files/atlas_d_anatomie_humaine.pdf
    • https://cdn.shopify.com/s/files/1/0433/7768/8743/files/bebijupokujaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7836/0987/files/55699150747.pdf
    • https://cdn.shopify.com/s/files/1/0437/9328/5277/files/3726659285.pdf
    • https://cdn.shopify.com/s/files/1/0440/0332/8150/files/jufojobefolok.pdf
    • https://cdn.shopify.com/s/files/1/0431/2301/5836/files/butuparefa.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/duzunikegerowakare.pdf
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/pisulidipetemimubumowe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000426d.bin
c83896aaa1c332b0d2f0a304e01a92182bade1830df05ef9bba674691918cd02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x426D 4908 bytes
font_01_sfnt_off0000532c.bin
5df5105d9a5c54c66f0df371b113845f073183e377c8693f9f22714f68366d41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x532C 9656 bytes
font_02_sfnt_off00007432.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7432 4324 bytes

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