Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f73c64dd9ea7da9…

MALICIOUS

PDF

46.3 KB Created: 2020-08-31 20:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77a2864e8340e89faccfdd2935ccdac0 SHA-1: cf65cddce527f69d58bce1c963b84cc77f3672da SHA-256: 3f73c64dd9ea7da95937f564e24ab0d017c17832f159c32c579d0b3f6755bc43
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.ru, disguised as a 'Gw2 legendary armor guide'. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The PDF also hosts a large number of external links, suggesting a link farm for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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.ru/wix?keyword=gw2+legendary+armor+guide
    • https://static.usrfiles.com/ugd/c33cdb_fea7c932d2a84cc3b37cb5535c9e3191.pdf
    • https://static.usrfiles.com/ugd/7ff653_d19259f0f5cf488eae51264eea3ef3fc.pdf
    • https://static.usrfiles.com/ugd/0a51c1_0450b18e44ca444b9fde45090423489f.pdf
    • https://static.usrfiles.com/ugd/05900a_710b68f33f9f442eb067edcaca1e2b8c.pdf
    • https://static.usrfiles.com/ugd/b8c837_de1879afb99948e58721224126c2868c.pdf
    • https://static.usrfiles.com/ugd/b8c837_9fb24b56143f48fe9235d6d03ba7d6b2.pdf
    • https://cdn.shopify.com/s/files/1/0436/8682/2053/files/povomalikezo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1384/files/18646328468.pdf
    • https://static.usrfiles.com/ugd/07e02c_9c5649dfcfcf498b8e96f2ca8d047f2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_04040f7608d74a0495fb67801fd37b0b.pdf
    • https://static.usrfiles.com/ugd/b8c837_00fd662ccaa04630affd15a124454021.pdf
    • https://static.usrfiles.com/ugd/3aee12_fa837458b2854595838129c0dc92bc2f.pdf
    • https://static.usrfiles.com/ugd/b0b521_378253406b6e443dbe69b3c3947ddcab.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_off0000788a.bin
5f09bdc27c63fd34710fc87828d331d2cfd7981bcbe93bb1bab250daec328408		 pdf-font-stream PDF embedded font (sfnt) at offset 0x788A 5324 bytes
font_01_sfnt_off00008aa8.bin
774bdb9bc488328930248bf687f06316d3599342fb42a03ac66b0e51bcd762fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA8 9968 bytes

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