Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ba571f69984c385…

MALICIOUS

PDF

42.7 KB Created: 2020-09-02 11:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8715e3bd4530b493cbf1f30cf8778f88 SHA-1: 12ac789c4bf1f375de43b940bb2ac98357e92ff0 SHA-256: 3ba571f69984c385b6c2db6c8e13a9c5c7e609a64828c44216f96be255af1788
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'root canal treatment steps pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further indicates the document's intent to drive traffic to external resources.

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.club/wix?keyword=root+canal+treatment+steps+pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niroduwo.pdf
    • https://cdn.shopify.com/s/files/1/0439/5397/9550/files/9904793537.pdf
    • https://cdn.shopify.com/s/files/1/0431/1348/0343/files/88808248729.pdf
    • https://static.usrfiles.com/ugd/c20ea7_71ae0dbe65564dddbc6e943733b91586.pdf
    • https://static.usrfiles.com/ugd/510a18_d98b3343689f451fba6fd5f09c0b8467.pdf
    • https://static.usrfiles.com/ugd/b65acf_3a1f3abc568345de937089ff34078f27.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/11701835433.pdf
    • https://cdn.shopify.com/s/files/1/0435/6138/6147/files/sheet_music_humoresque_dvorak_violin.pdf
    • https://cdn.shopify.com/s/files/1/0432/3377/1688/files/22469204961.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1515/files/luloza.pdf
    • https://static.usrfiles.com/ugd/dcbeda_13473225787c4549bead1d2fc0db039f.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_b3388406d88746d8b3439945e6e73f6a.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_off00006a4c.bin
2623d0566785f83c6ff3acd6c59f0105e076269eaaed31f139b73a7f32566c80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4C 5308 bytes
font_01_sfnt_off00007c48.bin
2f64655bdc45e3d994d3d3f64765cb7343198d567e2404ec03d78b051f0534b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C48 9832 bytes

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