Malicious PDF — malware analysis report

Static analysis result for SHA-256 480045281e999510…

MALICIOUS

PDF

46.5 KB Created: 2020-08-19 15:55:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 523959c7c5996a3aa48dcd1e5e0e8d8f SHA-1: 3c502e62f14596d48ed6c3766a859e207cb42451 SHA-256: 480045281e99951020f23998571b131dab3bc6a75ac336ecc1a5bef3ee12c813
128 Risk Score

Malware Insights

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

The PDF contains a "promise to pay letter template" lure, indicating a phishing or scam attempt. It embeds multiple external links, with one pointing to a known malicious redirector at ttraff.com. This suggests the document is designed to lead users to malicious content, likely for credential harvesting or malware delivery. The presence of numerous PDF links, including one to a file on cdn.shopify.com, further supports the lure's purpose.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=promise+to+pay+letter+template
    • http://files.cmjlawn.com/uploads/1/3/1/0/131069879/tidogofub.pdf
    • https://cdn.shopify.com/s/files/1/0433/4167/6694/files/canard_pc_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/annotated_brothers_grimm.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25618010541.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/55315293063.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/72657557856.pdf
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/71994136051.pdf
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/27635913670.pdf
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/71626350299.pdf
    • https://cdn.shopify.com/s/files/1/0431/6197/6994/files/25965566354.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_off000078ad.bin
ee14559fd01aed378fc889701b872248b689b162e0d83373909ba7cab3d98dd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78AD 5068 bytes
font_01_sfnt_off000089d5.bin
f00a14fc0af15c38a4d16d1e29e0273c20b57e5e919f31ec43ec7892c6973f81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89D5 10548 bytes

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