Malicious PDF — malware analysis report

Static analysis result for SHA-256 c68a35047fd7d483…

MALICIOUS

PDF

41.8 KB Created: 2020-08-28 01:09:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00474fac3d219d8b19c3e71bb2a5630e SHA-1: a410d2b1f40b3f9f81df383fb8757d46bd4e8d4f SHA-256: c68a35047fd7d483d29d990cc462ce4122cb84baf99853c1ac46e24c44083bca
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body contains a URL pointing to a known malicious redirector, 'ttraff.club', which is likely intended to lead users to a phishing or malware distribution site. The presence of numerous links, many pointing to Shopify domains, suggests a tactic to obscure the malicious destination or to appear as legitimate content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=o+restaurante+atl%25C3%25A1ntico+dubai
    • http://files.altamonteab.org/uploads/1/3/1/3/131379530/6225280.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3672/files/retorika_aristotle.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/zorusepopujitajev.pdf
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/alif_novel_complete_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/sap_business_objects_web_intelligence_4._0_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/4840/2081/files/bokodunutemov.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/how_to_renew_texas_drivers_license.pdf
    • https://cdn.shopify.com/s/files/1/0428/5300/7526/files/giludemaxabifunukokezej.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5351/files/foxex.pdf
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/56808965330.pdf
    • https://cdn.shopify.com/s/files/1/0436/0290/3202/files/favawinilobotoxosiralofap.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_off00005c2d.bin
35342f767b523138ddf0a3171b474449b0072f3a43553884dcaf7740b558491f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2D 5336 bytes
font_01_sfnt_off00006dc0.bin
50ebff67e27277cfeb3578ea3809ca42a4afbd8bc9f3d2466a2800fe53be5289		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC0 13664 bytes

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