Malicious PDF — malware analysis report

Static analysis result for SHA-256 49ef60bbf3af8e00…

MALICIOUS

PDF

52.7 KB Created: 2020-09-03 11:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bdb84a3b94de9262693ee89a5ab7c56c SHA-1: bb1975372cb675577b107d503ca488673eb730a1 SHA-256: 49ef60bbf3af8e00a4437316a90eb742c0934e306c0ed15c8823b999d907a6a8
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.me'. The document body, though heavily obfuscated, also contains this URL and appears to be a lure related to conservation officer reports. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, likely for SEO manipulation or to obscure the malicious redirector.

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=michigan+conservation+officer+reports
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/31573662693.pdf
    • https://cdn.shopify.com/s/files/1/0463/9408/1435/files/historia_del_diseC3B1o_editorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/gaboroxamo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9217/1165/files/21682129029.pdf
    • https://static.usrfiles.com/ugd/b8c837_92d19a79efe345d0bc8ffa3f4fb0913e.pdf
    • https://cdn.shopify.com/s/files/1/0432/0146/2436/files/graphic_designer_cv.pdf
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/kotelafiraxugo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/geneva_mechanism_mini_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/6288/5541/files/philips_hue_motion_sensor_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/19591129770.pdf
    • https://cdn.shopify.com/s/files/1/0433/4154/5626/files/3345210523.pdf
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/xawanijowinuxenaveruz.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_off00007eeb.bin
b82c403344c0f66cd15b74ca226f24287719d9bd6dbfb1d52c38c3db8fbd6d80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEB 5308 bytes
font_01_sfnt_off00009114.bin
87a6b965cd58fa8c7ed80dd0306f6291381c44f466e44c55538033af555a6b32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9114 17004 bytes

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