Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7a343aabf1a6c7…

MALICIOUS

PDF

45.5 KB Created: 2020-07-28 11:29:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f4485f3124e3ab17e774ba3e16bd8259 SHA-1: 192144a453513c61247a6c9ff1cd4c0ce5a104af SHA-256: ba7a343aabf1a6c77fc6939dbc32dfa56d1026690db893bec021375d0fa0fb30
140 Risk Score

Malware Insights

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

The PDF contains a lure instructing the user to enable macros or editing, a common technique to bypass security settings. It also embeds a link to a known malicious redirector, ttraff.com, which likely serves as a gateway to further malicious content. The PDF also features a large number of external links, many hosted on cdn.shopify.com, suggesting a link farm or SEO manipulation tactic.

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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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=jira+documentation+template
    • http://files.ninosoriadeveyra.com/uploads/1/3/1/6/131606502/b0cc556686.pdf
    • http://files.worryknot.co.uk/uploads/1/3/0/7/130738943/tifim.pdf
    • http://files.hicksandsonsatl.com/uploads/1/3/2/6/132683147/3263605.pdf
    • http://files.thedevotedlife.org/uploads/1/3/0/7/130739480/juzalalajib.pdf
    • http://files.thedevotedlife.org/upload
    • https://cdn.shopify.com/s/files/1/0432/0113/4754/files/ramepedemop.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9150/files/47445572780.pdf
    • https://cdn.shopify.com/s/files/1/0432/7188/0870/files/tebuxofodula.pdf
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/83141782390.pdf
    • https://cdn.shopify.com/s/files/1/0435/2599/6698/files/gawazu.pdf
    • https://cdn.shopify.com/s/files/1/0438/8916/4440/files/52941335794.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6960/files/87662773883.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/25951970952.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/vudesetikunirabo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/9416883672.pdf
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/27731235909.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_off0000753e.bin
ce4f0d57f1d98e8089fac37a67c9ce24927af77bdd364448ad6651efdb2af1fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x753E 4912 bytes
font_01_sfnt_off000085cb.bin
861674b04cd5df37aed0a7fb919e7c332ffd5a1e033bff0f961dd24ee2f95738		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85CB 10404 bytes

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