Malicious PDF — malware analysis report

Static analysis result for SHA-256 369169f9ba7acef8…

MALICIOUS

PDF

37.0 KB Created: 2020-09-13 03:24:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a180cab111459827d726211d704ae9e8 SHA-1: 6b11002944ae48d5cd78620bc61ba4da289af76a SHA-256: 369169f9ba7acef869f6f835fd618046993aabdc09500109feaaaef5220688f8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.club/wix?keyword=2017+polaris+rzr+570+service+manual'. This indicates a phishing or malware distribution attempt, disguised as a service manual. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous links and the redirector strongly suggest a 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.club/wix?keyword=2017+polaris+rzr+570+service+manual
    • http://monodo.mc-physics.com/uploads/1/3/0/7/130740151/22f3c386f6c7b.pdf
    • http://fikane.zhiguohe.com/uploads/1/3/0/7/130775214/buvunazovom_nusuwekadovaven_roxopimeji.pdf
    • http://files.lalookboutique.com/uploads/1/3/1/1/131163579/sejome.pdf
    • http://papiban.stmaryselmbridge.org/uploads/1/3/2/8/132814930/ffa13a2b79fe.pdf
    • https://static.usrfiles.com/ugd/24deb6_956d16e4f35e4d94ae45a5737dfc90a9.pdf
    • https://static.usrfiles.com/ugd/913720_21aaa7e5a5274bc8ab1c8147f037d113.pdf
    • https://static.usrfiles.com/ugd/a76634_4a555b1cdebe4f1f8108e29a004593a8.pdf
    • https://static.usrfiles.com/ugd/e745be_c33d0a51ddce43ba914ce706d3e75148.pdf
    • https://static.usrfiles.com/ugd/724bd4_c1abe95e5959420da7dfa836009ad6d2.pdf
    • https://static.usrfiles.com/ugd/7836c9_16595b9597fa4dbf9604f184d132aebd.pdf
    • https://static.usrfiles.com/ugd/930050_65a11110d5124b9296d7f3c2282763f7.pdf
    • https://static.usrfiles.com/ugd/c7a620_95831f209d984901ada0131fd856ed8e.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_off00005107.bin
bff263d4792ade7b5f370a8bbbe20f5472a0560542c24a5887e2ef46847bea74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5107 5624 bytes
font_01_sfnt_off0000642f.bin
7ccc44e9264ff86ee3913e99941276a73fc75cca6d2c88efca71891e22ebb9ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x642F 10368 bytes

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