Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab16959905ca4907…

MALICIOUS

PDF

52.8 KB Created: 2020-09-07 12:00:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0125a459079915a30129da3eabacf549 SHA-1: 3154093a04be68d57c29ff3c27722ade4e1b91f0 SHA-256: ab16959905ca4907b386bbcd476fd3aa7404710eed0d54350bf86e03ad1adcd5
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to 'ttraff.club', a known malicious domain. The document body, though heavily obfuscated, contains text related to 'vehicle owner information' and the malicious URL itself, suggesting a lure to trick users into clicking the link. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to host further malicious content.

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=vehicle+owner+information+mp
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/jonigusab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9839/1196/files/15616406297.pdf
    • https://cdn.shopify.com/s/files/1/0429/5137/7049/files/90279877813.pdf
    • https://cdn.shopify.com/s/files/1/0429/6910/4540/files/9768272307.pdf
    • https://cdn.shopify.com/s/files/1/0431/8514/3969/files/6680842246.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/singapore_bankruptcy_act.pdf
    • https://static.usrfiles.com/ugd/d13e1f_2d715ea1e935416985f2324c992919f7.pdf
    • https://static.usrfiles.com/ugd/fd30ac_862f8212504d4b938f6854eca9a80d48.pdf
    • https://static.usrfiles.com/ugd/ab63e3_91fef300621549229dea990fadbcf431.pdf
    • https://static.usrfiles.com/ugd/aef5b7_5b9984d992ce48c18294d7e8377e8510.pdf
    • https://static.usrfiles.com/ugd/b9801a_93459fae63ba4d96920bfd73f5da5c1b.pdf
    • https://static.usrfiles.com/ugd/4fea5c_09f8ce1c1e5e428faf620efb28c4f3da.pdf
    • https://static.usrfiles.com/ugd/0df15e_38b0bae8b2b04916acb036dfca3922bc.pdf
    • https://static.usrfiles.com/ugd/bae363_dd8f58a41c5049df8b213d8fcfd1d84e.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_off00009288.bin
283e8befe22f0153f1367148187b7ed6ffba61e76c212a9a9a689f2841317b03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9288 5132 bytes
font_01_sfnt_off0000a3e8.bin
eb21b701ed70a137d946752743afb8745262fc427c2dec4c4922f73c49985eb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3E8 10084 bytes

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