Malicious PDF — malware analysis report

Static analysis result for SHA-256 47df1764482a1b3b…

MALICIOUS

PDF

39.0 KB Created: 2020-08-18 22:48:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d610c2f7e93c4c96bb47abd81eb0645 SHA-1: a1c44c601ebdb165ceaa961f4abbe49e1a300536 SHA-256: 47df1764482a1b3bab1d5d939b1191f4195cd363b1ae640e384a764f166a04f7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same malicious URL and references urgency, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of a malicious redirector and link farm indicates a likely attempt to lead the user to a malicious site, potentially for credential harvesting or malware delivery.

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=hal+leonard+sheet+music+plus
    • http://files.lisafranek.com/uploads/1/3/2/6/132696030/xodulelasifi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/nifetuwedumikuvaparig.pdf
    • https://cdn.shopify.com/s/files/1/0433/6323/8056/files/13668923507.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6457/files/vumenafukavi.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/79931424202.pdf
    • https://cdn.shopify.com/s/files/1/0437/6340/0861/files/treatment_appendicitis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/xafaravolegofubotud.pdf
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/kukalurokebixad.pdf
    • https://cdn.shopify.com/s/files/1/0435/9477/6739/files/rajasthan_calendar_2020_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/1115/1768/files/xapiwolitekivatopumeveg.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_off00005a83.bin
212cfb9aa661e8efe315355d32b485419f26f05b28701ca918d2b01d8a8b8917		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A83 5272 bytes
font_01_sfnt_off00006c3d.bin
49a62ac0eb4cd8ba2fab66f57defbfe3a531b49905edda510a22e8839ffe41ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3D 10384 bytes

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