Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09cfe7a98b32f6f…

MALICIOUS

PDF

50.4 KB Created: 2020-08-30 09:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ca82c7cc820776269cc7f83056338fd SHA-1: fa8b7b23ea0bd892e8d34dc733a848fe3f9c9a84 SHA-256: e09cfe7a98b32f6f81badc19a20b525f27cfbfede7b71e466f8ce46b59b5f80b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=post+office+new+braunfels+tx'. This URL is likely used to redirect users to a phishing page or a malware download site. The document body, though heavily obfuscated, contains this URL and other links, suggesting a lure to trick users into clicking. The presence of numerous other PDF links, as indicated by the PDF_SEO_LINK_FARM heuristic, further supports the malicious intent of distributing or redirecting to harmful content.

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/wix?keyword=post+office+new+braunfels+tx
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/79465153482.pdf
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/28846286759.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/wipusopanun.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/80626477131.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/91592329286.pdf
    • https://cdn.shopify.com/s/files/1/0436/0437/7763/files/nivuzosiweturetikud.pdf
    • https://cdn.shopify.com/s/files/1/0433/3505/7566/files/seed_germination_lab_report_discussion.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b3437ac93af4eedb579bd23c38eb787.pdf
    • https://static.usrfiles.com/ugd/f0f215_2d53247d1fc046c596514b1fd96b09ef.pdf
    • https://static.usrfiles.com/ugd/b8c837_c0f0038b036a46fb83fd4948d088a571.pdf
    • https://static.usrfiles.com/ugd/efb3f0_80aa8370af654385afcb30118d8dc99a.pdf
    • https://static.usrfiles.com/ugd/b8c837_336d3089a682468f804f0b8855b4b0a6.pdf
    • https://static.usrfiles.com/ugd/b8c837_864f8aa53a194089ae322e85b2b7c595.pdf
    • https://static.usrfiles.com/ugd/0baf77_c6e5571d5405433e9be008e031ac42f0.pdf
    • https://static.usrfiles.com/ugd/d1c05f_5e81875bbf3849f9b71862c8f5a15ae8.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_off0000855d.bin
5f76a1d095a17b2bd2cdbb380ffb9047248d863da718d7d69896c7c520e7f890		 pdf-font-stream PDF embedded font (sfnt) at offset 0x855D 5176 bytes
font_01_sfnt_off00009718.bin
42330a5f2d12ba167ad42e2dd24083b1c5163e82610210f7bcd4b462d39bc4e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9718 11080 bytes

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