Malicious PDF — malware analysis report

Static analysis result for SHA-256 3faa14c0fd3be4cd…

MALICIOUS

PDF

36.3 KB Created: 2020-08-20 06:49:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8874061af634bc1750c955876ad02b45 SHA-1: 518827fc09c2b6600c4444594aeffba93dc4e1d1 SHA-256: 3faa14c0fd3be4cd9be9e3b34371a95d922c2bde3487032281b905e756c67e4f
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 links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to a malicious site. The presence of a malicious redirector link indicates an attempt to lead the user to a compromised or malicious resource.

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.com/pify?keyword=taladro+bosch+gsb+550+re+manual
    • http://pexom.rmgilmore.com/uploads/1/3/2/8/132816042/todov.pdf
    • http://files.savanfinancial.com/uploads/1/3/0/7/130775665/jusaruwatupawito.pdf
    • https://cdn.shopify.com/s/files/1/0430/4997/5959/files/89704184242.pdf
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/siranemukuluwezorudajumuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8307/files/bmp_to_converter_offline.pdf
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/69066111615.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/sx_de_alcoholismo_fetal.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/canva_real_estate_flyer_templates.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4727/files/49274543586.pdf
    • https://cdn.shopify.com/s/files/1/0438/4686/0957/files/71182866439.pdf
    • https://cdn.shopify.com/s/files/1/0427/9150/1990/files/32222706260.pdf
    • https://cdn.shopify.com/s/files/1/0430/5816/7959/files/wasipexisowilijumuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/bodokinameba.pdf
    • https://cdn.shopify.com/s/files/1/0450/2798/3510/files/english_language_learners_teaching_strategies_that_work.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_off00004f23.bin
db02698ae9a991277c872395ae57e07ba701c438b7c066b3261279e5dfd1b50f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F23 5708 bytes
font_01_sfnt_off00006263.bin
29d64e2f406bc1101988cfe6504fc88502bd57124f36b2f764e147ad573029fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6263 9936 bytes

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