Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0ed99d9c4d0a1b…

MALICIOUS

PDF

38.3 KB Created: 2020-09-01 19:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9333c9ad93f521a567558dea024af800 SHA-1: 6f5822c129bc74a0ebfaf5737692594f34f17759 SHA-256: fd0ed99d9c4d0a1bea0e47290b18549677cfc293eb8e764f74f9f3dcb41711b0
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, disguised as a printer driver download. This is supported by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing. The document body, though heavily obfuscated, contains the malicious URL and references to a printer driver, reinforcing the lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of similar links, suggesting a 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/wix?keyword=brother+printer+driver+hl-+2270dw
    • https://static.usrfiles.com/ugd/724fb5_2ec1d0cb04604bdfa358b929d81ba04e.pdf
    • https://static.usrfiles.com/ugd/ab059d_a534394d63cc4f73acf3f4fb050ed8a8.pdf
    • https://static.usrfiles.com/ugd/37428b_6f6d07bab7e848d083ed871de702c15e.pdf
    • https://static.usrfiles.com/ugd/b8c837_0101ef8a9c1742d981a7ea29c01fd187.pdf
    • https://static.usrfiles.com/ugd/c83fdb_e0b3145b130447f095479b5783cd47e7.pdf
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/jexupubuzadanusenuzip.pdf
    • https://cdn.shopify.com/s/files/1/0437/3485/9930/files/63569632086.pdf
    • https://static.usrfiles.com/ugd/d775a9_8dd7f9ec8fa64746804e332d4256da71.pdf
    • https://static.usrfiles.com/ugd/c83fdb_8d7de2d7bc994a569fa7086b6c8fc614.pdf
    • https://cdn.shopify.com/s/files/1/0438/4056/9494/files/kabewepajepiwot.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/41812480964.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_off00005928.bin
cb43ba0c6a2a4d54884635590c57b9d63b5fe573c0fb75117d7451836525db23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5928 5244 bytes
font_01_sfnt_off00006b23.bin
6572fd3f013b117c1e52f9b2558e923044897e3cde334f1466bed12f71522c4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B23 9644 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.