Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbc57b00d5fb06ec…

MALICIOUS

PDF

43.0 KB Created: 2020-08-04 13:15:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4384b4160deec27b6bedbddc25fc04cc SHA-1: ac7a612a298dbea97da84af02ae6f07721d715da SHA-256: fbc57b00d5fb06ec87ee6f27890e32f0f99067b7bcab96ec374d01f2d84328b6
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a large number of external links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.cc/pify?keyword=module+automate+programmable+ofppt+pdf, which likely serves as a gateway to further malicious content. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent. No scripts were extracted, but the sheer volume of links suggests a link farm or phishing campaign.

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.cc/pify?keyword=module+automate+programmable+ofppt+pdf
    • http://wawele.greenbeehoney.ca/uploads/1/3/1/4/131407227/nukiborosiror-liluzivoreb.pdf
    • http://files.coloradohomerepairandremodel.com/uploads/1/3/1/3/131381839/sajasabumiru.pdf
    • http://files.xphotographymore.com/uploads/1/3/1/4/131437655/4303596.pdf
    • http://files.saxappealpublishing.com/uploads/1/3/2/7/132712088/wuvutumu-talatifep.pdf
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/divorce_petition_form_malaysia.pdf
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/vaburupaditumur.pdf
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/14335635766.pdf
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/lafujilarorakevukub.pdf
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/77201221779.pdf
    • https://cdn.shopify.com/s/files/1/0440/2587/2549/files/46385363966.pdf
    • https://cdn.shopify.com/s/files/1/0428/7548/6367/files/nidir.pdf
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/dell_latitude_e6530_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0427/6997/3415/files/guwutoxotatupimu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/61148756652.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/boyer_moore_algorithm.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_off00006b14.bin
20eb03d1e44e32893063b25893844c8c78a2757ed6a86e51a0f4b665cc5582be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B14 5328 bytes
font_01_sfnt_off00007d27.bin
f6e72e61d2129f5dec447c55138807f9d46aad6e99442ed9a8aa66071d70ab89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D27 9936 bytes

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