Malicious PDF — malware analysis report

Static analysis result for SHA-256 d846c48f6c9e9dd8…

MALICIOUS

PDF

55.5 KB Created: 2020-08-09 21:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57777c5191948630c1d0ac47acdfe9ad SHA-1: 417dcce07c78b5422971e1588d409a0da2470057 SHA-256: d846c48f6c9e9dd813fb71d15d836787294e430ebe7c911ce3a539dc5dce75ea
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. The document body contains obfuscated text and the target URL, reinforcing the malicious redirection attempt.

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=altered+states+paddy+chayefsky+pdf
    • http://files.rklearningstudio.com/uploads/1/3/1/3/131383544/3615778.pdf
    • http://files.lonegalloper.com/uploads/1/3/2/6/132681823/2fdf4b63.pdf
    • http://files.the-fringe-lab.com/uploads/1/3/1/8/131872015/falaxaxa-volibe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5241/7703/files/senovideterasofale.pdf
    • https://cdn.shopify.com/s/files/1/0437/9577/5650/files/xejexozu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/ximesemeduz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/sisak.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/causality_in_physics.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/87352952234.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/tegizenafozasenivimuvaru.pdf
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/jujidisof.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/briggs_and_stratton_500_series_158cc_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/abcde_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78108387577.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_off000099b5.bin
e6ff2fdd20387eb018f047bd35182a4f6820aeed4c616451ebb0ed25e76fde35
pdf-font-stream PDF embedded font (sfnt) at offset 0x99B5 5396 bytes
font_01_sfnt_off0000ac16.bin
d3c6160a81bf524d27161cdc90ef9d1988686d817733f9e09da1754a129a4423
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC16 10856 bytes