Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e537cf3b495d198…

MALICIOUS

PDF

42.4 KB Created: 2020-08-31 14:42:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5771d0d28834807ff4aef873c4669089 SHA-1: 44b14c68e91e900d1185af8207fb366cae93b9f8 SHA-256: 2e537cf3b495d19831c79cc80d366b437b137b8333c4891e97a4f95611d676a1
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm, likely to improve search engine ranking for malicious content. The embedded URL 'https://ttraff.cc/pify?keyword=davis+drug+guide+pdf+protonix' is the primary indicator of malicious intent, disguised as a drug guide to entice clicks.

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=davis+drug+guide+pdf+protonix
    • https://cdn.shopify.com/s/files/1/0431/0165/1101/files/54392959616.pdf
    • https://cdn.shopify.com/s/files/1/0431/1348/0343/files/vuloxigogodiwogixutas.pdf
    • https://cdn.shopify.com/s/files/1/0432/8734/7364/files/fitivokofopivaxivisademij.pdf
    • https://cdn.shopify.com/s/files/1/0433/1775/6062/files/biography_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/58485276655.pdf
    • https://static.usrfiles.com/ugd/b8c837_05f5964cf47640e494df78c33968e996.pdf
    • https://static.usrfiles.com/ugd/3aee12_8490489bdf3a46d09b943061bb2c07e7.pdf
    • https://static.usrfiles.com/ugd/b8c837_0112073a40784c0b8b3ba496522f7bcf.pdf
    • https://static.usrfiles.com/ugd/a76634_70eb22dd6fb74ae18213fb1774145a11.pdf
    • https://cdn.shopify.com/s/files/1/0464/6325/4680/files/estudo_bblico_augustus_nicodemus.pdf
    • https://cdn.shopify.com/s/files/1/0467/5924/8035/files/58214892894.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_off000067fd.bin
26547e241fbdec4d975ca683ec97e9e2c7c153c85e5d2fe3248a34c18588c067		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67FD 5304 bytes
font_01_sfnt_off00007a2b.bin
0865e7290820a2d22af428ea1fc807e78b2e649753159600d395ef5f9d01a94a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2B 10208 bytes

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