Malicious PDF — malware analysis report

Static analysis result for SHA-256 a27407cca56e7e4f…

MALICIOUS

PDF

32.9 KB Created: 2020-10-10 20:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fec79f113c931b003e7ef90c322edcd1 SHA-1: aabba8e4b995127a447172c2c24e1ab922d9db3e SHA-256: a27407cca56e7e4f34fcf8f12bb8739b8354a52961cb115448bc69d54a7a9759
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to suspicious domains and are likely part of a link farm designed to manipulate search engine results. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a funeral home and the embedded URLs, suggesting a lure to 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.club/pify?keyword=willis+funeral+home+dalton+ga
    • http://jamov.raeleensfancyfaces.com.au/uploads/1/3/0/8/130874429/rofej-roxebesikapefu-gewizewapes-xizigivep.pdf
    • http://jupuseja.halfasshomemaker.com/uploads/1/3/1/6/131636734/30607.pdf
    • http://wuranud.laromana.ca/uploads/1/3/1/4/131453698/7905679.pdf
    • https://site-1039797.mozfiles.com/files/1039797/malixuxipiben.pdf
    • https://site-1039132.mozfiles.com/files/1039132/63090509062.pdf
    • https://site-1041766.mozfiles.com/files/1041766/sulabegazobazi.pdf
    • https://site-1036696.mozfiles.com/files/1036696/valabarupalonotuduvaxawi.pdf
    • https://site-1036917.mozfiles.com/files/1036917/56094312640.pdf
    • https://site-1036855.mozfiles.com/files/1036855/gefuliriwiwojunokojutova.pdf
    • https://cdn.shopify.com/s/files/1/0484/7606/1850/files/jimiwebubomefav.pdf
    • https://cdn.shopify.com/s/files/1/0438/5007/2214/files/fixoxezolozela.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_off000043fe.bin
00bf008b42b4c6e9346fce31ef77d7aebc3872d8a4a060368d717ec7e47bade1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43FE 5332 bytes
font_01_sfnt_off000055f6.bin
92f9ee27305afac641e74fc5ca10094c76cbb274d75bcf9c08e730ef1962ae69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F6 9724 bytes

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