Malicious PDF — malware analysis report

Static analysis result for SHA-256 45bc972959681dd6…

MALICIOUS

PDF

35.6 KB Created: 2020-08-23 22:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67c3c9ae797dee0b5b9a5ec749d43c31 SHA-1: 6a842e9a36113099f03c2342c4fafb5f0e2661a2 SHA-256: 45bc972959681dd6a2fff6b5752dcfa91884573eba70bd607ae2d4eda935a22d
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL, https://ttraff.ru/pify?keyword=campingaz+party+grill+400+cv+manual, is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains references to this URL and other embedded links, suggesting a link farm or SEO poisoning attack designed to lure victims.

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.ru/pify?keyword=campingaz+party+grill+400+cv+manual
    • http://japamaluv.astaseattle.org/uploads/1/3/1/6/131606354/nuvomusemudedun_vulegopa_lefug.pdf
    • http://files.narrinspiceandsauce.com/uploads/1/3/1/4/131437276/9ceec2.pdf
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/6760709204.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/ruwazowibivema.pdf
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/14936219921.pdf
    • https://cdn.shopify.com/s/files/1/0432/3852/3047/files/free_email_dinner_invitation_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/ansys_apdl_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/8391/4654/files/41293959588.pdf
    • https://cdn.shopify.com/s/files/1/0434/7969/5517/files/musifiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/integrated_accounting_system.pdf
    • https://cdn.shopify.com/s/files/1/0435/3222/2615/files/xewamesusu.pdf
    • https://cdn.shopify.com/s/files/1/0438/5135/0166/files/30348819812.pdf
    • https://cdn.shopify.com/s/files/1/0432/0765/5579/files/4844415974.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_off00004c06.bin
ff8ec5ce0310a9c4e3dc51cf3ce0e9354148006cabeedff4241aeac8acf488bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C06 5420 bytes
font_01_sfnt_off00005e78.bin
7e8077c423eb1caf71a554c7e10e619fdf1ec9dab668cc4bcab5049f93774771		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E78 9912 bytes

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