Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d74edeacfd99bc…

MALICIOUS

PDF

33.7 KB Created: 2020-08-16 13:27:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa0bc5cde1d42d26ce00056e996656b4 SHA-1: e463639e9551c68263c91949ee30cb16cddf5d23 SHA-256: d0d74edeacfd99bc3b126899cfd0dfe0e57171d0ece187c4ddb90a837d6365eb
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented in the document body, likely as a lure for 'cad files online'. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The presence of urgency language further supports a phishing or scamming 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cad+files+online
    • http://files.essexstdental.com/uploads/1/3/1/4/131438137/zilotilid.pdf
    • http://fazaxoja.derekrecks.com/uploads/1/3/2/6/132681670/1329044.pdf
    • http://zipof.phimi.pt/uploads/1/3/1/3/131383264/7792931.pdf
    • http://nadixim.behindthescenesinfirstgrade.com/uploads/1/3/2/6/132681670/937aaf4995.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/baxitojajote.pdf
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/neoliberalism_international_relations.pdf
    • https://cdn.shopify.com/s/files/1/0437/1555/9573/files/61425189521.pdf
    • https://cdn.shopify.com/s/files/1/0437/6346/6391/files/escala_cromatica_sax_soprano.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/minimalismo_existencial.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59044096386.pdf
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/23292661094.pdf
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/zuwubotodivinedadolida.pdf
    • https://cdn.shopify.com/s/files/1/0432/6811/2550/files/how_to_set_up_csgo_1v1.pdf
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/befunifilewafap.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_off00004813.bin
99ee2419d02cc8f46fb8208aa46d9ac4ef8e3389fbc5e9556d43c9ef0bea7759		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4813 4712 bytes
font_01_sfnt_off00005828.bin
c51afbcbbdda482d6f77660ef188c0d446d5e2e008dfb119fdd5e0c74a3ddb00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5828 9988 bytes

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