Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee945640a1de5b06…

MALICIOUS

PDF

41.2 KB Created: 2020-08-22 01:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e40ccaa4fc5971168735ef972c8cd24 SHA-1: 13f172b0381a1bdc03f09a7a19d28fdae9bd0a7b SHA-256: ee945640a1de5b069f16d415b2ea4ba65ecc0588dea2be42392b2e9409d60464
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=cardinals+injury+report+twitter', is identified as a malicious redirector. This suggests the document is designed to lead users to malicious websites through a link farm strategy. The document body contains garbled text and some of the extracted URLs, indicating a potential attempt to obscure the malicious intent.

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/pify?keyword=cardinals+injury+report+twitter
    • http://files.bennettgenealogy.com/uploads/1/3/0/7/130775229/3936307.pdf
    • http://files.christophermannino.com/uploads/1/3/1/4/131407315/pasobasak-vijotodev.pdf
    • https://cdn.shopify.com/s/files/1/0430/6790/0058/files/curso_de_calderas_industriales.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/71972469800.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/tifiwusuluzorojomerovatan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdf
    • https://cdn.shopify.com/s/files/1/0436/6771/8309/files/herbaceous_plants.pdf
    • https://cdn.shopify.com/s/files/1/0437/0602/4090/files/demaruwadutatovolid.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/bodyweightfitness_recommended_routine.pdf
    • https://cdn.shopify.com/s/files/1/0430/6078/9409/files/10927386781.pdf
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/85231108570.pdf
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/couch_to_5k_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/xozunufevotoxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/genetics_test_bank.pdf
    • https://cdn.shopify.com/s/files/1/0428/9921/0407/files/15104123642.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_off00006230.bin
1fe110ca7be8f657c875f73bb7b80e92543f3f51db7fd8ef923f6403dd011301		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6230 5128 bytes
font_01_sfnt_off000073c7.bin
33babf8941888c61203da16734db85c362b9cae1c25375cf199fe406605b4e05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C7 10580 bytes

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