Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce4673b23c156c0a…

MALICIOUS

PDF

47.1 KB Created: 2020-09-08 02:43:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71538803ae4567883091c7df4954922f SHA-1: 26106b139790a6529ed48f0a162148461695e0e9 SHA-256: ce4673b23c156c0a2586693b1893d5ee0a46bbae0545d4e587e56334f23b51de
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The embedded URL points to 'ttraff.club', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to this malicious site, likely for further exploitation or phishing.

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.club/wix?keyword=difference+between+parliamentary+and+presidential+system+pdf
    • https://static.usrfiles.com/ugd/e42ee3_6806a151034c49b1af9d16f89b9739d0.pdf
    • https://static.usrfiles.com/ugd/6e13d9_6915b85dca6a47388b2d3929e4352816.pdf
    • https://static.usrfiles.com/ugd/696117_e97af2d2ed8442a0b1da0741c2ddb93f.pdf
    • https://static.usrfiles.com/ugd/5a1791_19b3910826e4498c9b185d9bf05ca6d4.pdf
    • https://static.usrfiles.com/ugd/e56fe2_9eca287cabc142a987fa98ef2589c6e8.pdf
    • https://static.usrfiles.com/ugd/c1c462_aa88d49b33a8448abbdba7faea94571e.pdf
    • https://static.usrfiles.com/ugd/ba2c19_df3a0237a1d64198a7593b49a0e01fd0.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_379d481b9d9b4bbfb504cd491873b4a8.pdf
    • https://static.usrfiles.com/ugd/469aea_6d6a5b12f3154878a239fff365aed48c.pdf
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/minecraft_guns_resource_pack.pdf
    • https://cdn.shopify.com/s/files/1/0459/2238/6069/files/employee_bio_data_form_doc.pdf
    • https://cdn.shopify.com/s/files/1/0435/2258/8836/files/awards_for_all_information.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/sawexikiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/medmaps_for_pathophysiology_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/0877/0726/files/8170768851.pdf
    • https://bit.ly/3aPKfW0
    • 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/
    • https://static.usrfiles.com/ugd/ba2c19_df3a0237a1d64198a7593b49a0e01fd0.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007750.bin
e611029aeb4a2ea894cb373d7b34d6ec2b808cf78ec3753f29b4e4df37ba1ba0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7750 5636 bytes
font_01_sfnt_off00008a7d.bin
85c2bee7621cae4fa3fd5c2aff8f809759b1104ef74495deb773a23cdb2f422e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7D 11016 bytes

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