Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e39ca63152f229d…

MALICIOUS

PDF

41.8 KB Created: 2020-08-31 11:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c4161d48fcf0129c78ad15d956eb2b3 SHA-1: e2ab459e45e8b75cf5c3785b9f3a45d4755a6339 SHA-256: 4e39ca63152f229d0ac76770aa25a97e8ee72490f9748aa7ceb4c5ab4f61f0cb
120 Risk Score

Malware Insights

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

The PDF file contains a lure for 'mp3 download' and embeds multiple links. One critical heuristic indicates a malicious redirector link pointing to ttraff.com, which is likely used to deliver a payload or phish credentials. Another heuristic flags the PDF as a link farm, suggesting a broad distribution attempt. The embedded URLs and the document body content strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites.

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.com/wix?keyword=lalla+lalla+lori+mp3+download
    • https://static.usrfiles.com/ugd/b8c837_475ea5f403834e1c956264d8c682346e.pdf
    • https://static.usrfiles.com/ugd/5a1791_2d36af23d08f4fa58dff7d9d29b96310.pdf
    • https://static.usrfiles.com/ugd/c6ac46_8501ca2081dd49ef8fcd6846617142c5.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_74fffb36b37a41c0a3f237dba2aa3c1f.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fd0a6254a624316afc839a0cfb07ffb.pdf
    • https://static.usrfiles.com/ugd/b8c837_449531be947f4abbbab4ac6ba5463b66.pdf
    • https://static.usrfiles.com/ugd/b8c837_e824070f6e1745b1bfb4cc3cb22c099a.pdf
    • https://static.usrfiles.com/ugd/df4650_ceafb49fd3874289aced6da9d4bc8b3d.pdf
    • https://static.usrfiles.com/ugd/ac72e0_a9e5330261d94f179592cc0e40335f64.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/pemovamisalirejag.pdf
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/wumarilap.pdf
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/rosule.pdf
    • https://static.usrfiles.com/ugd/b8c837_25b9d2d0d040408c85387c4880d7847f.pdf
    • https://static.usrfiles.com/ugd/b13fd1_8d55842b52c045fb8ecb44ff13d68888.pdf
    • https://static.usrfiles.com/ugd/c8d394_ad5ba3c9baa4400b89f3d5ed338503a1.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_off00005add.bin
5c665368be57ef8037f54c79547bb6b2630dc7f85844c1d773f731b95565d086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADD 5124 bytes
font_01_sfnt_off00006c48.bin
430e459255d396e3d0d7c5a04dffb51c274a5a0479f5ea3010125508e610279e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C48 14976 bytes

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