Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b1a350f12d59f6…

MALICIOUS

PDF

45.4 KB Created: 2020-09-07 08:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4b9fbc83b858cc9c67e031b16a2e856 SHA-1: 990b392cffe8154585eb68a13b101067efbca599 SHA-256: e2b1a350f12d59f6a7f92d81eb4b1ed8ed0d126b5c71edc703e685eedd2b6531
150 Risk Score

Malware Insights

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

The PDF document contains a lure related to a 'Halloween film quiz and answers'. It embeds multiple links, with one specifically identified as a malicious redirector pointing to 'ttraff.me'. This indicates an attempt to direct the user to malicious content or a phishing site. The ML classifier also strongly flagged this PDF as malicious.

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.me/pify?keyword=halloween+film+quiz+and+answers
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/llbean_baxter_state_parka.pdf
    • https://cdn.shopify.com/s/files/1/0433/1264/4251/files/10669606617.pdf
    • https://cdn.shopify.com/s/files/1/0432/7112/7206/files/cartesian_diver_worksheet.pdf
    • https://static.usrfiles.com/ugd/0010c8_43a0c5aa637f4d42aebddefc4d7aa8e6.pdf
    • https://static.usrfiles.com/ugd/a421e3_a6fd988f95494845b56ae2bd6c59f43a.pdf
    • https://static.usrfiles.com/ugd/362633_557d276145d44b06900f80084deba05e.pdf
    • https://static.usrfiles.com/ugd/ce5d00_baba6dc11b45498db02c9be7741fe6d1.pdf
    • https://static.usrfiles.com/ugd/2b25e8_f1d59b8b25614f84bcf6da74652e5ef9.pdf
    • https://static.usrfiles.com/ugd/d54300_55e2c6152be04461830f589b34f46dff.pdf
    • https://static.usrfiles.com/ugd/d162e3_bc810e5d317a4a69b3dd744b12250de8.pdf
    • https://static.usrfiles.com/ugd/bcfc12_e2015581adcb46a383b01cfcc37140f7.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/wederexag.pdf
    • https://cdn.shopify.com/s/files/1/0435/0391/1076/files/zogezetevifix.pdf
    • https://cdn.shopify.com/s/files/1/0434/2022/1607/files/fizix.pdf
    • https://cdn.shopify.com/s/files/1/0436/5107/2158/files/87535631266.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_off00007339.bin
03306f9bb627c38baf6dbf147e3dd06d7ef9b748e3fcbd459dcae72240e23fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7339 5284 bytes
font_01_sfnt_off00008531.bin
7f59788c605edf187adb637c9592264fc6e8dac8a50f34eaee0da4a32f736107		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8531 10612 bytes

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