Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64705cd43469164…

MALICIOUS

PDF

44.2 KB Created: 2020-08-09 23:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54fc2f2739eaa748f75154ca8ab17497 SHA-1: d471c0733c1eb95be9b0933819ccca460dbbc5f8 SHA-256: f64705cd43469164f1975e92eaa4d7169b62cf958b2dfddc7281627b672161a6
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary malicious URL, 'https://ttraff.cc/pify?keyword=annabel+lee+analysis+pdf', is flagged as a known malicious redirector. The document body is heavily obfuscated and contains remnants of the malicious URL, suggesting the document's purpose is to lure users through these links.

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=annabel+lee+analysis+pdf
    • http://files.architectmcgahrenctny.com/uploads/1/3/0/7/130739214/1ff3cc1beb143f.pdf
    • http://files.marielouisejones.com/uploads/1/3/2/6/132681452/wafine_xogopimabezis.pdf
    • http://files.letthemlearnllc.com/uploads/1/3/0/7/130738524/wawufid.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/xegomesipugokesadoti.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/23197127021.pdf
    • https://cdn.shopify.com/s/files/1/0431/2802/9345/files/53565283798.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/zotaxonezafuravivamawubo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7039/7339/files/7470737569.pdf
    • https://cdn.shopify.com/s/files/1/0433/0291/2168/files/12938794113.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/20332393160.pdf
    • https://cdn.shopify.com/s/files/1/0437/7437/8138/files/kikodumibiwalumamipumugab.pdf
    • https://cdn.shopify.com/s/files/1/0440/6856/9238/files/roxuzezim.pdf
    • https://cdn.shopify.com/s/files/1/0438/0796/5341/files/98188597632.pdf
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/zenizebokuvunesamudotixu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9979/1265/files/503217410.pdf
    • https://cdn.shopify.com/s/files/1/0428/6477/1238/files/rasowunurewawipejif.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/3_bedroom_bungalow_house_plans.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_off00006f74.bin
c16494157c7f271bd5eda62d468c1cd0afc9dab272efa1585bda253e6f3302cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F74 5172 bytes
font_01_sfnt_off00008124.bin
4caaa078b62b9e28e9a4b78d9fe77adaeab03cf383486bf73ccfcd13ce899b8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8124 10164 bytes

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