Malicious PDF — malware analysis report

Static analysis result for SHA-256 eefc9c23019947fe…

MALICIOUS

PDF

44.3 KB Created: 2020-08-30 11:32:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50bfb054f3cf0f2ec1eac2c687a8779e SHA-1: 6dc3c561cb2e5e93855467fda80e272b8bc916a6 SHA-256: eefc9c23019947fee97a5aa777e871cde29aad4917c3dd1cdeeb8952b6f3c624
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.cc/wix?keyword=que+es+museografo+de+arte', is flagged as a 'PDF_MALICIOUS_REDIRECTOR_LINK'. This indicates the document is likely designed to lure users into clicking malicious URLs, potentially leading to phishing sites or malware downloads.

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/wix?keyword=que+es+museografo+de+arte
    • https://static.usrfiles.com/ugd/b8c837_25543622b9ae4d07bb1ea74336628cf4.pdf
    • https://static.usrfiles.com/ugd/b8c837_0498c0ee08044bf8bb70d73c57a1bc4a.pdf
    • https://static.usrfiles.com/ugd/b5472a_fc4bf1455a134ddc9e3867c36e5b2ddc.pdf
    • https://static.usrfiles.com/ugd/cf79db_5771761819654c9fb31d943c83176d3a.pdf
    • https://static.usrfiles.com/ugd/06497e_969db12332454861b2a33df37d4a8e7c.pdf
    • https://cdn.shopify.com/s/files/1/0432/2770/9597/files/dephion_slanted_font_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/4158/5314/files/2065889403.pdf
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/42918793469.pdf
    • https://static.usrfiles.com/ugd/3826db_9e27d9d6f01f4132b17dec8e5acf0cd8.pdf
    • https://static.usrfiles.com/ugd/756799_678160d6fb8e4d5984f19584eeb1493a.pdf
    • https://static.usrfiles.com/ugd/cac9e4_089f59f4b1344703bddb2026014555ff.pdf
    • https://static.usrfiles.com/ugd/b910ae_b60afcd4e78049b0817e903b3953580e.pdf
    • https://static.usrfiles.com/ugd/9421c8_185a6e8669864eca89be4c5abd9c0636.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f56.bin
66a0351ea9df55dada4da9dbc79948f349258dcae38510001679cb4896b2c0e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F56 4984 bytes
font_01_sfnt_off0000704b.bin
fb989b9d21eb8eab6d3521656a0612a314148bcc651bdd62ebc596703900e2ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x704B 11084 bytes
font_02_sfnt_off0000943f.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x943F 4324 bytes

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