Malicious PDF — malware analysis report

Static analysis result for SHA-256 967e602ad5314d75…

MALICIOUS

PDF

32.6 KB Created: 2020-08-22 12:13:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3db95f24d4569b19402dcd7583d248c5 SHA-1: 95846495275575ba9451ff1c5ca3ffaa41a7d5b3 SHA-256: 967e602ad5314d7533f3acaf487f1702c61bbc241d0e20a6245d2a1a4a016b91
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'plotting coordinates pictures worksheet tes' and embeds a large number of external links. One of these links, https://ttraff.com/pify?keyword=plotting+coordinates+pictures+worksheet+tes, is identified as a malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to lead the user to malicious content or a phishing site.

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.com/pify?keyword=plotting+coordinates+pictures+worksheet+tes
    • http://files.ceceliacornelissens.com/uploads/1/3/0/7/130775813/06fca6a2cd5ca24.pdf
    • http://teruzak.searspediatrics.com/uploads/1/3/1/4/131410685/2735026.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72890356131.pdf
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/fur_elise_classical_guitar_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/9321528716.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9074/files/adolescentes_con_baja_autoestima.pdf
    • https://cdn.shopify.com/s/files/1/0434/0593/4757/files/ketomemefuliwanolimuze.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6160/files/25258806118.pdf
    • https://cdn.shopify.com/s/files/1/0439/4621/3544/files/deravelaminasomefesubapuw.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_off000040ac.bin
75c13b4d17a6285dd3a1969b58e843e8fe9dac662325bcbf5ebe0ee6cee85536		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40AC 5492 bytes
font_01_sfnt_off0000535a.bin
98f21011cecac77c6bb0a6bdc2b82064edaf6ff725a19addfb20c209ec80a447		 pdf-font-stream PDF embedded font (sfnt) at offset 0x535A 10240 bytes

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