Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0313c522e9bd46…

MALICIOUS

PDF

43.7 KB Created: 2020-08-04 03:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 557449c8374020bd307414bb96ff3d29 SHA-1: 2719101e744ec085dc22c6923c3cfd2cca433f54 SHA-256: 8e0313c522e9bd46eeaf9d2f5063b4820d5133543b92f2bf6bccc989df888efd
120 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, directing users to 'https://ttraff.cc/wb?keyword=s%20works%20venge%202019%20manual'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the same lure text and the malicious URL, reinforcing the social engineering attempt. No scripts were extracted from this sample.

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/wb?keyword=s%20works%20venge%202019%20manual
    • http://files.manguskhan.com/uploads/1/3/2/7/132712093/dotiru_bidinofukod_tanubudetara_wesawivenisare.pdf
    • http://files.pdxprays.com/uploads/1/3/1/3/131383018/wikixawasagi.pdf
    • http://files.kiramickleyoga.com/uploads/1/3/1/8/131856757/zuwixusosapuwado.pdf
    • http://files.nicole-bramble-illustration.com/uploads/1/3/0/7/130775220/185c5483ff.pdf
    • http://files.skyfieldtropical.org/uploads/1/3/1/4/131407823/1178735.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdf
    • https://cdn.shopify.com/s/files/1/0428/8466/1414/files/venomous_fishes_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/99298709982.pdf
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/11568187966.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/kunupaxibagirefopo.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/32459983607.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/55978052690.pdf
    • https://cdn.shopify.com/s/files/1/0433/6707/1894/files/73778261688.pdf
    • https://cdn.shopify.com/s/files/1/0432/8849/4236/files/osrs_magic_max_hit.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/88042355439.pdf
    • https://cdn.shopify.com/s/files/1/0431/8940/3810/files/sumajukolibela.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/dubij.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_off00006a3b.bin
1e274cfc2b712e1dceaa4e0c8c052d1e02aeaa9d858a44c1f1ed1dd8f3e2e1dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3B 5804 bytes
font_01_sfnt_off00007e02.bin
cd23a661daa3da8034e5b1f2fa4a2cd918c913878c37c3d8191bc47e9767b4b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E02 10420 bytes

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