Malicious PDF — malware analysis report

Static analysis result for SHA-256 880bd4e9c838d4d1…

MALICIOUS

PDF

51.5 KB Created: 2020-08-22 19:18:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48aac9462378f5c45fda3d403a0d402c SHA-1: f21071c21ef0c190d715ff947d03a46f7adca67a SHA-256: 880bd4e9c838d4d1563229fa5bb66e80979f40645d5094fed8f9fe73625f470f
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 partially corrupted, includes this URL along with other Shopify links, suggesting a lure to a malicious site under the guise of providing content. The presence of a link farm heuristic further supports the malicious intent of distributing links.

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=isaiah+rashad+the+sun%2527+s+tirade+free
    • http://fages.lilianaduque.com/uploads/1/3/0/9/130969352/vavazuvapagov_sezezupa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/19827796286.pdf
    • https://cdn.shopify.com/s/files/1/0440/1935/1710/files/7667199715.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37872338034.pdf
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/57455281275.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/vujemejopo.pdf
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/career_options_in_commerce.pdf
    • https://cdn.shopify.com/s/files/1/0439/4729/4875/files/ropixifujixofajawavupup.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/nonejanulefozezikezemiwi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/cherishing_moments_font.pdf
    • https://cdn.shopify.com/s/files/1/0434/8385/7053/files/64986379606.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_off000080c6.bin
6c4d9ba4a036c1ef9e65fac3ce4b71edf40ada7234979d9695caf9abe0197034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80C6 4704 bytes
font_01_sfnt_off000090aa.bin
0e97b93b6a202483bf0ac9e9010d10f6547959cecb4f283e146c066292d83af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90AA 10120 bytes
font_02_sfnt_off0000b345.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB345 4324 bytes

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