Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d42da56ab9884d7…

MALICIOUS

PDF

45.0 KB Created: 2020-08-08 12:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 955868e660d8db51404252cb9005f058 SHA-1: a1ec1c9af12c5e96c1a162d4fea1827746ea9e51 SHA-256: 9d42da56ab9884d760355d75739e9fd8629e87d9f96f8c19e1205d1a20e10ed1
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Cagliari tourist map pdf' and the URL 'https://ttraff.cc/pify?keyword=cagliari+tourist+map+pdf', suggesting a lure to a malicious site. The presence of numerous PDF links, many hosted on cdn.shopify.com, indicates a link farm strategy to potentially improve search engine ranking or distribute malicious content.

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.cc/pify?keyword=cagliari+tourist+map+pdf
    • http://files.starlightdancecamps.com/uploads/1/3/0/7/130775215/luvosazeb.pdf
    • http://files.midwesthomebuilding.com/uploads/1/3/0/7/130739835/tutewufaxaju.pdf
    • http://files.hansqittycut.com/uploads/1/3/1/4/131454766/ffc629879.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/beloved_brands.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/radical_equations_worksheet_algebra_2.pdf
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/99423897870.pdf
    • https://cdn.shopify.com/s/files/1/0433/1637/9816/files/68223208543.pdf
    • https://cdn.shopify.com/s/files/1/0433/5704/4904/files/fopewokiliforafegi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/82449201305.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/27408250003.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdf
    • https://cdn.shopify.com/s/files/1/0433/1733/0075/files/16468026138.pdf
    • https://cdn.shopify.com/s/files/1/0432/4756/7010/files/adjective_clause_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexanenivoxepabulolud.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3541/files/gafopemok.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_off00007267.bin
cb42a2730a8f4a885b51e13cfcce087ef2a1397e8167b9b9848358064ff59a21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7267 5268 bytes
font_01_sfnt_off0000843d.bin
fcc032f6d549a361e040adf90658182b90c2e0fd9731f597247fe273a66b7abb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x843D 10340 bytes

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