Malicious PDF — malware analysis report

Static analysis result for SHA-256 4982ce74ade35def…

MALICIOUS

PDF

34.6 KB Created: 2020-08-14 12:40:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9287c58c3e3e27611bfc46e8fd88ca03 SHA-1: a9f10e2349dac36efd916034cd5f25c4f3fd5253 SHA-256: 4982ce74ade35def111f5a6b0576b7debbb1afb75b5b944115bc44c42382f7c3
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at https://ttraff.com/wb?keyword=bellini%20oven%20manual%20bp470ec. The document body, though heavily obfuscated, appears to contain text related to an oven manual, suggesting a lure to disguise the malicious intent. The presence of a link farm further indicates a malicious distribution strategy.

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/wb?keyword=bellini%20oven%20manual%20bp470ec
    • http://bikow.midtrans.online/uploads/1/3/2/6/132681670/9266971.pdf
    • http://files.weareaces.org/uploads/1/3/2/8/132815298/nunol.pdf
    • http://files.8ritual8.com/uploads/1/3/0/8/130814676/3326cb72a93.pdf
    • http://pifapi.nolimitzcardesignz.com/uploads/1/3/0/7/130775997/2632623.pdf
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/16431048607.pdf
    • https://cdn.shopify.com/s/files/1/0432/0945/7825/files/55540913343.pdf
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/zelogewif.pdf
    • https://cdn.shopify.com/s/files/1/0429/8522/6403/files/comprendre_le_cercle_trigonomtrique.pdf
    • https://cdn.shopify.com/s/files/1/0428/5428/5479/files/sudododo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2956/0486/files/jquery_refresh_page.pdf
    • https://cdn.shopify.com/s/files/1/0437/1369/1799/files/58469298641.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/17164417734.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/1411543165.pdf
    • https://cdn.shopify.com/s/files/1/0428/3082/3583/files/80531556234.pdf
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/celebrities_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0445/6411/9716/files/adaptive_optics.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_off00004852.bin
aa37cf8d1e5b1e791a582e563df2629e00c1995928a17ae51abf12a87d7260dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4852 5364 bytes
font_01_sfnt_off00005a90.bin
950ee69116b06c9df26ce88816a0a841353201d1c01b61a492852734eb4ade9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A90 10312 bytes

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