Malicious PDF — malware analysis report

Static analysis result for SHA-256 e411396853866cef…

MALICIOUS

PDF

44.0 KB Created: 2020-08-21 05:04:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f93721d75e6aad842d34f4ecee4a2a3 SHA-1: 8a3d8f5286de3c67d94804fa5e8129b016b76607 SHA-256: e411396853866cef22bfc42119af71714bc8ddf5582fd253da9aaa3591b5600f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the text "Greedy cave guide skill" and the malicious URL, suggesting a lure. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm abuse to distribute malicious content.

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=greedy+cave+guide+skill
    • http://files.tmpmentoring.com/uploads/1/3/0/7/130739777/sulemixizitutuxu.pdf
    • http://kemanojig.thebodycoalbury.com/uploads/1/3/1/6/131606289/78701.pdf
    • http://files.southernpeachtravelagency.com/uploads/1/3/0/7/130775825/876453.pdf
    • https://cdn.shopify.com/s/files/1/0431/3425/5258/files/makimiwadobadudisu.pdf
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/wujafogonilefotuterusafix.pdf
    • https://cdn.shopify.com/s/files/1/0432/9321/2827/files/44313301936.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6100/files/28807736346.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/mobemixusuxeporadat.pdf
    • https://cdn.shopify.com/s/files/1/0435/0817/0918/files/rasibujab.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/black_and_decker_cordless_sheet_sander.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/55515245626.pdf
    • https://cdn.shopify.com/s/files/1/0435/4480/5525/files/nakuwuf.pdf
    • https://cdn.shopify.com/s/files/1/0457/6211/7788/files/85340553021.pdf
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/rekozukijajoteregajozuso.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/
    • https://cdn.shopify.com

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d76.bin
72e8149c47a643c3001c6401a77d9ed1763656c850786959c0dd60ab5cabc72a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D76 5364 bytes
font_01_sfnt_off00007fdc.bin
c5552fd6dc214b19962a229447f01c2f60cba6f69010b057077c47796bf20cf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDC 10308 bytes

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