Malicious PDF — malware analysis report

Static analysis result for SHA-256 302695271618acf5…

MALICIOUS

PDF

45.1 KB Created: 2020-08-05 06:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff093562e401e84a3bbf6b460f7f20d4 SHA-1: fd297da2d4e73dec97a154a437f7cf7f09cc7781 SHA-256: 302695271618acf57bdcc5e7f424789e873852da8b3015ad7affd28a346db81d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that one of the primary links leads to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a large number of external links, likely to manipulate search engine results or to distribute malicious content. No scripts were extracted, and the document body was largely unreadable binary data, but the presence of the malicious redirector link is a strong indicator of malicious intent.

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=voltage+regulator+ic+pdf
    • http://gexemid.artsstudentsassociation.org/uploads/1/3/1/0/131070493/4684abd9.pdf
    • http://files.lezhookup.com/uploads/1/3/0/8/130813364/6893388.pdf
    • http://files.happyyouarehere.life/uploads/1/3/2/6/132681307/vuwomokenuvar-ritozo-bofew-tilelaga.pdf
    • https://cdn.shopify.com/s/files/1/0432/7332/2664/files/bose_soundtouch_10_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/7889/3214/files/wivek.pdf
    • https://cdn.shopify.com/s/files/1/0447/9015/3365/files/catalog_avon_c15_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/26591500587.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3279/files/tekabujevekokowapul.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/bixorijokar.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/9830336730.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3206/7739/files/41107004431.pdf
    • https://cdn.shopify.com/s/files/1/0434/7982/6589/files/julasizozesosatagojavuki.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3540/files/calculus_derivatives_examples_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/raw_till_4_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/safuvobikawenogademetu.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_off00007167.bin
4479aa857ba65851580e104ca8dd4475a3f78614fa3e100d3fe87d20455b8d0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7167 5112 bytes
font_01_sfnt_off000082e5.bin
4d94ebb3deb6c7022397f7ef68ab4f9083912f6d5fcaf9aef734fb5c77e8732f
pdf-font-stream PDF embedded font (sfnt) at offset 0x82E5 10668 bytes