Malicious PDF — malware analysis report

Static analysis result for SHA-256 e919d04ee579fb21…

MALICIOUS

PDF

40.9 KB Created: 2020-08-03 00:26:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bedba665e62f38b90a964e25f6609d30 SHA-1: a0ffd3cb026ec1e526cfb6844ac40d275630910e SHA-256: e919d04ee579fb217f88198b4a0594798148c5b752165d9e8ccc8d8232681e74
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 'https://ttraff.com/pify?keyword=verizon+fios+cancel'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, also contains the same malicious URL. This suggests the primary intent is to redirect the user to a malicious site, likely for phishing or a scam.

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=verizon+fios+cancel
    • http://files.jmbmoldings.com/uploads/1/3/1/4/131408117/79309.pdf
    • http://files.alexandremiller.com/uploads/1/3/2/6/132680974/bidowaxiju-fodumovif.pdf
    • http://files.allthethingsshesaid.com/uploads/1/3/0/9/130969577/tanebesi_depozasajevami_liraz.pdf
    • http://files.wellnessrevolutionstudio.ca/uploads/1/3/1/4/131409498/9913576.pdf
    • https://cdn.shopify.com/s/files/1/0434/2821/6983/files/11354302466.pdf
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/mujibira.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/ruxiwigujunoxowigoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/e5_8d_a1_e6_96_b90._975.pdf
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/87871665891.pdf
    • https://cdn.shopify.com/s/files/1/0432/4858/2820/files/ge_artic_refrigerator.pdf
    • https://cdn.shopify.com/s/files/1/0430/5649/6791/files/57504940871.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/11286803963.pdf
    • https://cdn.shopify.com/s/files/1/0431/8953/4869/files/topotexevirul.pdf
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/fewefogapefatopi.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_off00006148.bin
5e59d9c27051215224b0910669f9efd8bc7eed9b1427054114b9ffc74408a7b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6148 4888 bytes
font_01_sfnt_off00007208.bin
a31ee4b3209c73ac3a25b6f4717e5556e5cb55a23ffa41addf30f3a44e336fbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7208 10820 bytes

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