Malicious PDF — malware analysis report

Static analysis result for SHA-256 333ffa3d71da3c3f…

MALICIOUS

PDF

40.5 KB Created: 2020-08-18 17:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd4f951f1761c86bd75b03631751d8a1 SHA-1: 7c4ce1731c25e0621da13e2e13841a3dfa3f37e8 SHA-256: 333ffa3d71da3c3f040c4e7e77d117047c3e72a18ab7e7dc0d0514da04b48eb3
128 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and a call-to-action phrase, aiming to trick users into clicking embedded links. The primary link redirects to a malicious domain (ttraff.com), indicating a phishing or redirection attempt. The file also exhibits characteristics of a link farm, with numerous embedded links pointing to various PDF files, likely for SEO manipulation or to obscure the malicious intent.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=literature+review+conclusion+template
    • http://files.greenfieldpubliclibraryfoundationma.org/uploads/1/3/1/3/131398231/potoze.pdf
    • http://files.tlamcivics.com/uploads/1/3/0/7/130738779/f33866f2c41e859.pdf
    • http://files.skydivetofino.ca/uploads/1/3/1/1/131163867/veziretej.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/21760078561.pdf
    • https://cdn.shopify.com/s/files/1/0432/8030/2244/files/fibrinolytic_therapy_guidelines_acls.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/algoritmo_para_resolver_el_cubo_de_rubik.pdf
    • https://cdn.shopify.com/s/files/1/0432/8597/1112/files/47769544007.pdf
    • https://cdn.shopify.com/s/files/1/0435/4539/5359/files/dulawezesewisavepesu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9081/8712/files/29249166450.pdf
    • https://cdn.shopify.com/s/files/1/0440/8747/6389/files/betewo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2881/4746/files/83792507132.pdf
    • https://cdn.shopify.com/s/files/1/0440/3511/3110/files/australia_visa_application_form.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_off000061a9.bin
bcd3b4cf9312cc9d0eac0c6e24ba74064402b13141ddcc7e89a6a51faa1aa884		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61A9 5172 bytes
font_01_sfnt_off00007339.bin
b930eefbcbdf9055f50e630e590ee50fb09da862aab3968ef0f78817aa482177		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7339 10160 bytes

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