Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b9acc1f0267884e…

MALICIOUS

PDF

40.6 KB Created: 2020-08-31 09:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c89caccf044847d46c125fc2fb69ad6 SHA-1: f2453c50eb6e5d4fd60a88ef2ae906ee0492c6bc SHA-256: 2b9acc1f0267884eb6002e8767c575ce6feb3db6f62a86131f9abb520caac30e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=noun+phrases+ks2+examples'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as the primary lure. No scripts were extracted, and the PDF structure itself does not indicate further malicious behavior beyond the link.

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/wix?keyword=noun+phrases+ks2+examples
    • https://cdn.shopify.com/s/files/1/0429/9656/4131/files/46245868849.pdf
    • https://cdn.shopify.com/s/files/1/0437/2011/4344/files/74958098957.pdf
    • https://cdn.shopify.com/s/files/1/0428/7073/5014/files/15528832145.pdf
    • https://cdn.shopify.com/s/files/1/0434/4712/4130/files/research_concept_note_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/6408/2073/files/because_of_bethlehem.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb835e4e5b2b4850a9dce70c08322263.pdf
    • https://static.usrfiles.com/ugd/d55797_7653b94e69c045f38adde5cf6eb1f6e2.pdf
    • https://static.usrfiles.com/ugd/fbccce_e24dc17298d240c3a790ce8b8d2c3929.pdf
    • https://static.usrfiles.com/ugd/b8c837_b1b84b64e421481cae97d9f4545d2187.pdf
    • https://static.usrfiles.com/ugd/a18aa6_c933104be6014b358b9ee848ad6e8fb1.pdf
    • https://static.usrfiles.com/ugd/b916f4_959922b0218046c3a3c6b3182ff62f01.pdf
    • https://static.usrfiles.com/ugd/8cbfce_c6f16c43f2c049eb83656dab946cad0a.pdf
    • https://static.usrfiles.com/ugd/d55797_c9bf2626d43b444bb8ae4aff3372e77c.pdf
    • https://static.usrfiles.com/ugd/9c3693_5acf49e40d0e4d1f962b581645696c0a.pdf
    • https://static.usrfiles.com/ugd/b8c837_74ce2ee4f04c40b098c673db95b548dc.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_off000060f2.bin
32290e069a079f596161004aa8349051d76652dde4c62d3568efc1e8445162d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60F2 5292 bytes
font_01_sfnt_off000072c8.bin
d38c9cb56dbfa8286678832c6b8f17e4459353a609fd2699852413b1c1400d0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C8 10416 bytes

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