Malicious PDF — malware analysis report

Static analysis result for SHA-256 974c499d1f29b613…

MALICIOUS

PDF

43.1 KB Created: 2020-08-07 18:48:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85df455cad8af15aad92fcfa45c075db SHA-1: 57cf9a690792ee7a1fe7d505d4287824adbeaebb SHA-256: 974c499d1f29b61393272228161b0676facd4bc04befb52e857515d64902b0b5
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. This indicates a social engineering attempt to drive traffic to malicious infrastructure, likely for further exploitation or phishing. The document body itself is heavily obfuscated and contains the malicious URL, reinforcing the redirection attempt.

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=berichte+schreiben+klasse+6+%25C3%25BCbungen+pdf
    • http://files.tabithareyes.com/uploads/1/3/1/8/131856125/6867855.pdf
    • http://files.jasonricphotography.com/uploads/1/3/1/8/131871602/xusafiriwazifonugax.pdf
    • http://pimulaba.mysmellysocks.com/uploads/1/3/2/7/132741334/2414175.pdf
    • http://files.pittsburgseafoodandmusicfestival.com/uploads/1/3/0/7/130776374/42f30a85cdf.pdf
    • http://files.kathshiatsu.co.uk/uploads/1/3/1/6/131606739/verivubafusos.pdf
    • https://cdn.shopify.com/s/files/1/0436/9419/4843/files/47622627059.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/fevifupe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1044/0859/files/add_to_path_linux.pdf
    • https://cdn.shopify.com/s/files/1/0436/8600/2843/files/junozafuli.pdf
    • https://cdn.shopify.com/s/files/1/0436/2089/2834/files/what_a_beautiful_name_hillsong_worship_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/bungoma_county_bursary_application_forms.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/jatedonidogasebufowoxo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4511/6311/files/5622286946.pdf
    • https://cdn.shopify.com/s/files/1/0447/0043/4586/files/absite_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/ford_f-_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/2402/1664/files/mergers_and_acquisitions_in_strategic_management.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_off000063dd.bin
c3190517dfb9f139a57e4a07df9469104246fc20f1db74e7299387564db9dd37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63DD 5944 bytes
font_01_sfnt_off000077dc.bin
47ade709660fb74ea90ea0fd19c592eed957c311234e2ff2a8e917d794a4ad2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77DC 11124 bytes

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