Malicious PDF — malware analysis report

Static analysis result for SHA-256 2574c53cd5c8fdf1…

MALICIOUS

PDF

40.8 KB Created: 2020-08-25 00:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d5cbb35cb3a5c72293c8fbe85689cf2 SHA-1: 672632b47ed636c99c70e1914eb6bf5aa2f26322 SHA-256: 2574c53cd5c8fdf1eb6707b23d8537a31a499b2d9210c4a77db10e6f1f13d4a0
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as interview questions. This link is part of a link farm, suggesting an attempt to distribute malicious content or phishing pages. The primary malicious URL identified is ttraff.com, which is used to redirect users to further 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.com/pify?keyword=client+services+representative+interview+questions+and+answers
    • http://files.hollyrav.com/uploads/1/3/0/9/130969592/d6966c673cf2.pdf
    • http://texet.emmanuelcommunityfarm.org/uploads/1/3/0/9/130969742/xamuxotudoxililarife.pdf
    • http://fukixavo.mosaicinaction.com/uploads/1/3/2/8/132814930/f663238ead.pdf
    • http://todina.bethelchapelny.org/uploads/1/3/1/0/131070588/4608730.pdf
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/wenukokopimuxidoxevajap.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9202/files/25230542707.pdf
    • https://cdn.shopify.com/s/files/1/0434/7569/7830/files/nawibiredisikozewoxexo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/asthma_wikipedia.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/97911510518.pdf
    • https://cdn.shopify.com/s/files/1/0445/7309/8143/files/how_to_make_ender_portal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0431/2062/3765/files/2376763609.pdf
    • https://cdn.shopify.com/s/files/1/0437/1451/1001/files/banting_green_orange_and_red_list.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_off00006264.bin
27761554d7f37ad51ed3df52b8db9b67d59ef4f5e629f3a3e90352d04946b0ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6264 5248 bytes
font_01_sfnt_off00007456.bin
da44c0ab60c610a6b1d4bf4100bd66105425a5806923f6305b767ce838e7fccf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7456 9868 bytes

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