Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe6027ea944272c…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 23:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e59629613037a92791953831324ca6f SHA-1: c011d1f987a68664c98660855c2571ddc0ca38d6 SHA-256: ebe6027ea944272cd59a118125a60fa9151048252f60c9337e399f4caab8faa7
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure for a "flat sale agreement format pdf". This indicates the document's primary purpose is to redirect users to a malicious site, likely for further exploitation or phishing. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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=flat+sale+agreement+format+pdf
    • http://files.greatdabu.com/uploads/1/3/2/7/132712206/4350582.pdf
    • http://files.leegeedesigns.com/uploads/1/3/2/6/132682040/676974.pdf
    • http://gisedipux.dougsgaragellc.com/uploads/1/3/1/4/131453133/421e37e7.pdf
    • https://cdn.shopify.com/s/files/1/0437/0422/1849/files/56417498750.pdf
    • https://cdn.shopify.com/s/files/1/0432/7384/6947/files/32667120834.pdf
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/kijofexusefusimibonawi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/pepinaliwifigomobukapof.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5290/files/korapebikugavalirojon.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8307/files/bmp_to_converter_offline.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/6061393124.pdf
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/numpy_rotate_vector.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_off0000697b.bin
266446df83672d562c57ecc66a3ffad3d131bae17a2a0be5bbfa4a3bb68916ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x697B 5316 bytes
font_01_sfnt_off00007b7d.bin
168704b9cdb61cbec3df74750255c64a210e128a28622909d92090476b67b695		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7D 9996 bytes

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