Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ed8dfe8262349a…

MALICIOUS

PDF

49.9 KB Created: 2020-08-14 06:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03a6748996d8c7b38b9f3214926de8d7 SHA-1: ad3ddbbe8cd92944ceb9e274770e14b67b9e6f78 SHA-256: 97ed8dfe8262349a35f957dbc2178df378b6c7cf75e8c86820040c1abc846cc4
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting a link farm or SEO spam campaign. The primary malicious URL identified is https://ttraff.cc/pify?keyword=prince+george+county+va+police+reports, which is likely used to redirect users to further malicious content. The document body contains garbled text but also includes the malicious URL and several benign-looking Shopify URLs, some of which are also part of the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=prince+george+county+va+police+reports
    • http://files.angiezinserphotography.com/uploads/1/3/0/7/130776046/lupovalotub.pdf
    • http://files.leilamesdaghi.com/uploads/1/3/1/6/131637147/gavojugivokozajalu.pdf
    • http://files.soundlyspeakingtherapyservices.com/uploads/1/3/1/8/131856191/2630135.pdf
    • http://files.moxieblog.net/uploads/1/3/1/6/131607075/bebexodas_tebenodagoxelup.pdf
    • https://cdn.shopify.com/s/files/1/0432/1394/7041/files/statistical_methods_by_n._g._das_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/veboxetuxaledupokofo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/rebozup.pdf
    • https://cdn.shopify.com/s/files/1/0433/4387/2153/files/gudabudufopugipotopotob.pdf
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/biblia_cronologica_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdf
    • https://cdn.shopify.com/s/files/1/0434/7622/2118/files/super_sweet_16_the_movie.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1770/files/52817447339.pdf
    • https://cdn.shopify.com/s/files/1/0432/8875/6384/files/pufobenilituvib.pdf
    • https://cdn.shopify.com/s/files/1/0431/0358/4409/files/firemonepetepogejiba.pdf
    • https://cdn.shopify.com/s/files/1/0438/3673/5645/files/rerajifukokulolof.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_off00008510.bin
35368dead778a65ae2cac21637591344cc2c3c31e418c1cfb67a0d2062bccda8
pdf-font-stream PDF embedded font (sfnt) at offset 0x8510 5264 bytes
font_01_sfnt_off0000970a.bin
f71f263e92208a9e26053223563df9efda219efb1b7dfb769a2a351110ff8c24
pdf-font-stream PDF embedded font (sfnt) at offset 0x970A 10372 bytes