Malicious PDF — malware analysis report

Static analysis result for SHA-256 a75858d68e3e5203…

MALICIOUS

PDF

43.0 KB Created: 2020-08-28 02:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aad211d7274a72ea4174812d9e85a75c SHA-1: de36ec50fe0d4a7f19a9815d1e9364f45971e7b8 SHA-256: a75858d68e3e5203cef1402402ccba53d6963c7c6ed75a5777dde0aeec60e30e
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as an ebook download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link points to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a link farm, likely for SEO manipulation or to distribute malicious content. The ML_NYX_PDF_MALICIOUS classifier strongly indicates malicious intent.

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=oxford+dictionary+ebook+free+download
    • http://pogugo.myriadpharmacy.com/uploads/1/3/0/7/130776008/mabotozos-putexakipuwijob-fotisijor-raxupubujelomeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9507/files/37405031526.pdf
    • https://cdn.shopify.com/s/files/1/0440/8023/4661/files/100_answered_prayer.pdf
    • https://cdn.shopify.com/s/files/1/0428/7424/1183/files/7400240165.pdf
    • https://cdn.shopify.com/s/files/1/0463/3709/7889/files/ponudif.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9841/files/pedazajaluj.pdf
    • https://cdn.shopify.com/s/files/1/0437/0461/5066/files/92508143400.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/makelasetetajotepoluwerul.pdf
    • https://cdn.shopify.com/s/files/1/0440/1384/6693/files/nejitatadozutovagef.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_off000069df.bin
bafda7b66156f87cdff79f50175ec18b23b510e0d6bfb138204b32de737ca731		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69DF 5328 bytes
font_01_sfnt_off00007c2e.bin
b8a56be0a840832779cef43f88a97fa5c1d19a2d9583075a038a0153fcd15e44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2E 10364 bytes

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