Malicious PDF — malware analysis report

Static analysis result for SHA-256 93600a0e4fd2e2bf…

MALICIOUS

PDF

43.0 KB Created: 2020-08-05 04:18:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1c31e857e760c48a1fdb46f46845425 SHA-1: 039cae319beaf6afee6c73778d332d2c668886bd SHA-256: 93600a0e4fd2e2bf8fab652351fa1dec1d35dec2aec6b08a49d4759cdfb1a375
130 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a known malicious domain, ttraff.com, which is flagged as a malicious redirector. The document body, though partially corrupted, includes the same lure text as the malicious URL, suggesting a social engineering attempt to trick users into downloading potentially harmful content. The presence of numerous external links, many pointing to Shopify domains, further supports the SEO link farm heuristic, indicating an attempt to manipulate search results or distribute malicious files.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=data+structures+and+algorithms+made+easy+pdf+free+download
    • http://matezog.integritysportsdfw.com/uploads/1/3/2/6/132681670/597462.pdf
    • http://files.littleredfoxcosplay.com/uploads/1/3/0/7/130740522/jarezilelenuvobovuk.pdf
    • http://files.whitegallowaysofwayby.com/uploads/1/3/0/8/130873907/fewubogukobavel-sixomolimu-mifip.pdf
    • http://files.pronovaprojects.com/uploads/1/3/0/7/130776791/eb0c67.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/96149295003.pdf
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/sefapel.pdf
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/lanamebe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/75223527653.pdf
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/clicker_heroes_bloop_coins.pdf
    • https://cdn.shopify.com/s/files/1/0430/7147/1767/files/mefopoxijejin.pdf
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/5197846280.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2623/files/tekewenebisavibajel.pdf
    • https://cdn.shopify.com/s/files/1/0433/9911/9013/files/76746665367.pdf
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/30135474588.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_off0000685c.bin
d0dda5c3e89e5a7d3040b45acbec56b3df3fc869e7a4add489d9622e80f15b02
pdf-font-stream PDF embedded font (sfnt) at offset 0x685C 5760 bytes
font_01_sfnt_off00007be9.bin
9ac9b8310e3ca09adef0205fe19dc15bae1cb902a2421eab3052d85cb724adc9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE9 10248 bytes