Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6d31ee7d53959ec…

MALICIOUS

PDF

42.0 KB Created: 2020-08-14 01:46:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afbd18b6b76a67f5d35b1546330f7322 SHA-1: 808d2b0f9683e95c629929f970c2701ce577c2fd SHA-256: f6d31ee7d53959ecd1fd6286577d85b87c18af0be127f7ba5b5079abe14b7307
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document also contains a large number of links to PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The presence of a download button further supports the lure of downloading unwanted content. No scripts were extracted, limiting the analysis of direct execution behavior.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=videoder+apk++2019+for+pc
    • http://files.mar-pascual.com/uploads/1/3/2/6/132683328/vuwevasifupuva-jetozoxaja.pdf
    • http://files.finestmakaticondo.com/uploads/1/3/0/7/130738700/3604192.pdf
    • http://semarami.michaelsmarketingagency.com/uploads/1/3/1/4/131408056/b36825.pdf
    • http://timoze.fourgolflegends.org/uploads/1/3/1/4/131406947/xitolozizusit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6194/4228/files/50835326039.pdf
    • https://cdn.shopify.com/s/files/1/0430/7592/8218/files/black_christmas_2006_cast.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7711/files/5212194035.pdf
    • https://cdn.shopify.com/s/files/1/0431/1495/4908/files/71715866190.pdf
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/definicin_de_blog.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1157/files/63978724691.pdf
    • https://cdn.shopify.com/s/files/1/0432/1070/3010/files/poxigenobeximip.pdf
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/yellowhammer_report_in_full.pdf
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/rizudakikusaximut.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/11160790263.pdf
    • https://cdn.shopify.com/s/files/1/0434/7422/3269/files/basebigawogevonelog.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_off000063bc.bin
669ac9d1a32f2ee753bfa1c03b2c149f7b1191cb3a03fc9aff4b00c45811add5
pdf-font-stream PDF embedded font (sfnt) at offset 0x63BC 5448 bytes
font_01_sfnt_off00007660.bin
a48fae40169f71db4748b9cc04a78a4c72e6f53a18d1f7a7d84cf449f72c312f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7660 10756 bytes