Malicious PDF — malware analysis report

Static analysis result for SHA-256 82dcaf0c994f048b…

MALICIOUS

PDF

50.3 KB Created: 2020-08-11 20:41:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c221915296f7f725f704f0dee08a9088 SHA-1: 411ea1646969e571208c58a2923b4d6146d88610 SHA-256: 82dcaf0c994f048be2846ac70a66c737d2a6f9ff5ddd81f7e8afd82b410f83fa
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document's primary purpose is to redirect users to a malicious site, likely for phishing or malware delivery. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirect. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=core+exercises+for+low+back+pain+pdf
    • http://sojuko.caymanpensionwatch.com/uploads/1/3/2/6/132681862/b5c37.pdf
    • http://jabof.camogroup.ca/uploads/1/3/1/3/131383657/golozin.pdf
    • http://files.drcamcreates.com/uploads/1/3/2/6/132682113/837368.pdf
    • http://files.lasttimetheywon.com/uploads/1/3/2/6/132682070/nelamunidovugusiju.pdf
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/juzenupili.pdf
    • https://cdn.shopify.com/s/files/1/0433/7441/1926/files/89384047326.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/rozujinadir.pdf
    • https://cdn.shopify.com/s/files/1/0431/2868/4701/files/sejoxek.pdf
    • https://cdn.shopify.com/s/files/1/0447/8137/1543/files/english_to_french_dictionary_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/4339/6506/files/xidakubuvejaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8076/files/bepawuxidagovogosavo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/81025882864.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wozofedotomutigetipire.pdf
    • https://cdn.shopify.com/s/files/1/0431/2150/8509/files/3926674092.pdf
    • https://cdn.shopify.com/s/files/1/0435/7170/8065/files/project_report_on_acid_rain.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/ridat.pdf
    • https://cdn.shopify.com/s/files/1/0431/5627/5360/files/carl_jung_dreams_book.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_off000085c1.bin
3ad745acde87257a7075ba679b940047379d6eecc3d6b90cf239ffd8ee15c305		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85C1 5416 bytes
font_01_sfnt_off0000984b.bin
191b357e68f87470d89bc404ea0be11a74e6ac1b76b4625bb43035eeaac29d65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x984B 10376 bytes

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