Malicious PDF — malware analysis report

Static analysis result for SHA-256 362135a3beef3327…

MALICIOUS

PDF

70.7 KB Created: 2020-08-12 03:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 895887dd3cde08f83e0c3697771dcf41 SHA-1: 64200c10dc4c69f578e7f34918d86beee87b6cae SHA-256: 362135a3beef33276bcf485f69e66abf7a75903239c69734751e534a0508cc56
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This suggests a phishing or scam attempt where the user is tricked into visiting a malicious site by clicking on a seemingly relevant 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/pify?keyword=einstein+equation+derivation+pdf
    • http://files.a-rational-econ.com/uploads/1/3/1/3/131398291/gafuwelawa.pdf
    • http://limerib.normacowie.ca/uploads/1/3/1/3/131398504/1706889.pdf
    • http://files.montealea.org/uploads/1/3/0/8/130814129/30f2d797.pdf
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/welefobajoxajatepafa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/gegunovuwawaropeze.pdf
    • https://cdn.shopify.com/s/files/1/0430/4322/5751/files/togob.pdf
    • https://cdn.shopify.com/s/files/1/0440/7659/7413/files/90317195028.pdf
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/tilim.pdf
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/60264571190.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/69978969256.pdf
    • https://cdn.shopify.com/s/files/1/0438/7107/6520/files/numuna.pdf
    • https://cdn.shopify.com/s/files/1/0437/6238/5045/files/kivokubivetik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdf
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/51355364350.pdf
    • https://cdn.shopify.com/s/files/1/0433/3476/2655/files/dekizivadenizazag.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/ielts_academic_writing_skills.pdf
    • https://cdn.shopify.com/s/files/1/0434/9883/2037/files/likopumepositujilal.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/tozovuxigigumitalugiwizuv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b693.bin
1c08bd0c69b7aa6a0f7e36ce6e0e51f8b177e2f2acbd45f6d63579ee83e29869
pdf-font-stream PDF embedded font (sfnt) at offset 0xB693 5148 bytes
font_01_sfnt_off0000c827.bin
9aec89581857a550d86b7594917bb2d71c3ef0c816dfc1cf8ae6a743d5bc9522
pdf-font-stream PDF embedded font (sfnt) at offset 0xC827 15092 bytes
font_02_sfnt_off0000f85f.bin
252a1c657980c3af1c129c3451097afd6d15d1427f3dada764273f351c813c4c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF85F 16084 bytes