Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2540555a367b730…

MALICIOUS

PDF

34.3 KB Created: 2020-09-10 06:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba4cdc7e9cdabc16b870fa31d6777fc7 SHA-1: 388187ffe296af7b50ae57d4c84851c922bbd385 SHA-256: c2540555a367b73093267fc3e63e10c1834c3c7513b2aa4fba51c18e8f5fa08c
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to a malicious redirector. The primary malicious URL identified is https://ttraff.link/wix?keyword=force+guided+relay+omron. The document body contains garbled text, but the presence of the malicious link and the heuristic firings strongly indicate a phishing or redirection attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=force+guided+relay+omron
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/bunisupezir.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/53527819182.pdf
    • https://cdn.shopify.com/s/files/1/0454/0373/4184/files/affiliate_marketing_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/nofonipilusigonorarizuxa.pdf
    • https://cdn.shopify.com/s/files/1/0438/1255/2864/files/elevator_speech_introduction_template.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_6bb2c5af09c44c5682af9b13db0a416a.pdf
    • https://static.usrfiles.com/ugd/c836c3_cf52f3c90bd74f96b3a0e23606b6cefe.pdf
    • https://static.usrfiles.com/ugd/daca0d_f3b05daa2a724f97b26dd4f08b40ca5e.pdf
    • https://static.usrfiles.com/ugd/805d2a_71de626744b54ad1acdb2f0865eb9f5d.pdf
    • https://static.usrfiles.com/ugd/16879a_4e1fd3673e594e68b25a33e1ceebb3ab.pdf
    • https://cdn.shopify.com/s/files/1/0429/2440/8991/files/50590453068.pdf
    • https://cdn.shopify.com/s/files/1/0463/2834/8832/files/hodder_education_answers.pdf
    • https://cdn.shopify.com/s/files/1/0438/2015/5037/files/58239168822.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_ad31d715e56a4ca7969f9e4dc35db22d.pdf
    • https://static.usrfiles.com/ugd/a31856_23a91931cbe946fca9a6a0509ad8eb9f.pdf
    • https://static.usrfiles.com/ugd/8da65f_83ad197633cd44e696d351856f7eb8f9.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_off0000488b.bin
cf30993ea5dc4428da3154f3e464beed4715e581f6378125d70cd4954f5bd4d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x488B 5140 bytes
font_01_sfnt_off000059ff.bin
317a713cd7e9f55b0b9e3ce312f636b79685850499d0072a9c92940ecf892b2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59FF 10116 bytes

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