Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebecdb5b7bc4b815…

MALICIOUS

PDF

49.7 KB Created: 2020-08-28 20:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2825ce55ff460a332e4a6921eabb1e95 SHA-1: b546a60d5fdfcc038376ca5c156b62908a0a9345 SHA-256: ebecdb5b7bc4b815413f3e754173ac53eac0fdca58a36ee9eb8ba1d63416e183
162 Risk Score

Malware Insights

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

The PDF contains a lure related to academic citations, which is a common tactic for advance-fee scams. It embeds numerous links, including one to a known malicious redirector at 'ttraff.cc'. The PDF also contains a large number of links to Shopify-hosted PDFs, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the presence of the malicious redirector and the advance-fee scam lure strongly indicate a phishing or scam attempt.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.cc/wix?keyword=discovering+the+lifespan+4th+edition+apa+citation
    • https://cdn.shopify.com/s/files/1/0432/6853/8521/files/sowewitovokajuzodasaxid.pdf
    • https://cdn.shopify.com/s/files/1/0428/6971/9199/files/dezunukepogowidofinar.pdf
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/zedemapomuwasexamipop.pdf
    • https://static.usrfiles.com/ugd/b8c837_756280f7b4e343b4939720676291bbec.pdf
    • https://static.usrfiles.com/ugd/b8c837_c89d68849be6470da648a9c094566a68.pdf
    • https://static.usrfiles.com/ugd/b8c837_e2bbc7df612f44b98b4b924f4a1a7a61.pdf
    • https://cdn.shopify.com/s/files/1/0461/8174/4793/files/astonishing_swordsmen_sorcerers_of_hyperborea.pdf
    • https://cdn.shopify.com/s/files/1/0433/7804/9189/files/nikejedijuwabikadesufago.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/traeger_wood_pellet_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/0365/5830/files/versacheck_download_with_keygen.pdf
    • https://static.usrfiles.com/ugd/b8c837_ebaa5da43e824dd68ca5ff8a5f2a29fc.pdf
    • https://static.usrfiles.com/ugd/b8c837_096c9ef2c21d4edd99528077ba3309ed.pdf
    • https://static.usrfiles.com/ugd/b8c837_157440d2edae43d6b7bdffdd7c5d561d.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d77f2b57c8a43fd8b1c7c0d218342df.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_off000082b4.bin
6bb986b781d618c456471d2fc00509b3b2bd2553ffdda2254ca173002b2afcf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x82B4 5564 bytes
font_01_sfnt_off000095a4.bin
436ba5bb2175922839c54ca548e51e86d622c8c0b704fc14cfb965b0409a83e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x95A4 10552 bytes