Malicious PDF — malware analysis report

Static analysis result for SHA-256 417f4b46980bbf47…

MALICIOUS

PDF

47.8 KB Created: 2020-07-30 20:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75bf398852cda0627a8c2d3efdc62146 SHA-1: 3b72a823b191713597859b1120056d2f01dfd225 SHA-256: 417f4b46980bbf4731d57e33c1f030048544479ab9e759ad6f427c49341e887a
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.com, which is disguised as a document about intestinal absorption disorders. The file also exhibits characteristics of a link farm, with numerous embedded links pointing to various PDF files, likely for SEO manipulation or to distribute further malicious content. The presence of these elements strongly suggests a phishing or malicious redirection attempt.

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=trastornos+de+absorcion+intestinal+pdf
    • http://files.yegtrashtalk.com/uploads/1/3/0/8/130814043/4006774.pdf
    • http://files.oregoncarehome.com/uploads/1/3/1/4/131453867/zamejarore_tafap_xigupepekefib.pdf
    • http://files.thehubwoolavington.co.uk/uploads/1/3/1/6/131637273/mukuxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4641/2188/files/bimifap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8071/files/94990511445.pdf
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/pexot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/87695317777.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mejiwevabefi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3928/3608/files/solexosofesedavati.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/83345874125.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72438278193.pdf
    • https://cdn.shopify.com/s/files/1/0431/1390/6333/files/kakipiterafewe.pdf
    • https://cdn.shopify.com/s/files/1/0433/4511/7342/files/jalakimisojokobozujat.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/wimibepol.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/s/files/1/0428/9105/1161/files/8769531

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d3a.bin
b1b5b7288eb03c89079957b3f14c3bc846c06e551c135dc0d170d25927863e61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3A 5024 bytes
font_01_sfnt_off00008e4a.bin
391dc5e4f2dd2bbdff50f0482b6b4bec38377c471b687607f687a703a8dc0a65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4A 10456 bytes

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