Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e6aaa00cc6199a7…

MALICIOUS

PDF

56.8 KB Created: 2020-08-30 13:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40cd04aa8e17da5f63a7daab3907f82f SHA-1: c656e1a8ab59ba40ae0c07557ef7a89d5acc178e SHA-256: 3e6aaa00cc6199a7e404df572ae2a1b50161a862a2fb37ef3979cb3da4b5d7f9
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 PDF files hosted on Shopify and static.usrfiles.com. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.com/wix?keyword=la+muerte+graba+middletown+ny'. This suggests a phishing or scam attempt to redirect users to malicious content. The document body contains garbled text but includes the malicious URL and a benign-looking PDF filename, likely part of the link farm strategy.

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/wix?keyword=la+muerte+graba+middletown+ny
    • https://cornerstonefamilyhealthcare.org/med
    • https://cdn.shopify.com/s/files/1/0433/0124/0992/files/star_wars_bounty_hunter_ps2_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3437/files/lovosuxodelitekivomonewab.pdf
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/suvakotuxuxoje.pdf
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/sugixekarefajag.pdf
    • https://cdn.shopify.com/s/files/1/0433/1316/8542/files/wilip.pdf
    • https://static.usrfiles.com/ugd/b8c837_e24d915b7adb4a728f09d69b917fe139.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4bf6b409ea74fed8cf0887e40321912.pdf
    • https://static.usrfiles.com/ugd/b8c837_941cb09722124005a9a745a8750c1b6b.pdf
    • https://static.usrfiles.com/ugd/80bfa9_793e6433edeb4c2f916504778ed64b5f.pdf
    • https://static.usrfiles.com/ugd/7baf93_2e7315e6a9bd4812b21f7ee4d2053fbe.pdf
    • https://static.usrfiles.com/ugd/64d889_79858f718e08415cb05fc47ca803881a.pdf
    • https://static.usrfiles.com/ugd/b8c837_892a9f32df13495b9abec32675d6c7e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_f47ab693e40c4d2d8411d679fbc148b2.pdf
    • https://static.usrfiles.com/ugd/565485_bb686c6c2ba24072ad49722bcf1a0dc5.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_off00009727.bin
34dd7a323ca49f429fe4de88851018ef65dd8acce583a0a731a1eb26d62e2261		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9727 5240 bytes
font_01_sfnt_off0000a8f8.bin
cb6033921f412c430f1f07dbda42e088ccd6d8de3164236cc196f9ff911fc6f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F8 14852 bytes

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