Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6ad917f57a4524…

MALICIOUS

PDF

43.8 KB Created: 2020-08-03 16:32:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 670f89bbe3e546b94126213ed2456c6a SHA-1: a639efe6903e91de3979cf0a04bf598d85955532 SHA-256: 2b6ad917f57a4524846c9bce092bf4e29db0190820a151ac656aa6a3a5e5493e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, includes the text 'Ensayo de bienestar animal pdf' and the URL 'https://ttraff.cc/pify?keyword=ensayo+de+bienestar+animal+pdf', suggesting a lure to a malicious site disguised as a document. The presence of numerous links indicates an attempt to obscure the malicious destination and potentially leverage SEO tactics for distribution.

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.cc/pify?keyword=ensayo+de+bienestar+animal+pdf
    • http://bosurener.norlandblair.com/uploads/1/3/0/7/130739777/3139128.pdf
    • http://files.nzpics.com/uploads/1/3/2/6/132682471/7405284.pdf
    • http://files.salemfurniturerepair.com/uploads/1/3/1/4/131454549/13a5108e11.pdf
    • http://files.allsaintskeokuk.org/uploads/1/3/1/8/131856492/b8a78580580.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/7037471346.pdf
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/vobuxususegoborabivu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/71244272030.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/56002925172.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/wirokasojowulosud.pdf
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/netekemotisaderiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bakafudanililem.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/pudewafitapedoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifezunelavezide.pdf
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/68549593062.pdf
    • https://cdn.shopify.com/s/files/1/0438/1917/2000/files/funizifegus.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/depexozexilaw.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_off00006ade.bin
c257934fa84490be5a64131e56ca987734c95d068ca39a02aa6526c7ef12ca64
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADE 5388 bytes
font_01_sfnt_off00007d1b.bin
54f8ca02ec249014e9abf40b104a021508cd7b0e9001e2d84ba15338dd85203e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1B 11432 bytes