Malicious PDF — malware analysis report

Static analysis result for SHA-256 feaffedd7035b534…

MALICIOUS

PDF

42.4 KB Created: 2020-08-08 15:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e9736f3a7801cd3531954dc65bee3f3 SHA-1: 33eccffb25838b1d180e7be66d4e351b144a41f3 SHA-256: feaffedd7035b534fb8b296a84bbe506740020c8fc7b601723e012e78d3f663b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning tactic. One of the primary links directs to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic.

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=andaman+tour+plan+pdf
    • http://files.mindbekind.ca/uploads/1/3/2/7/132740172/xikemo.pdf
    • http://files.paolositaliankitchen.com/uploads/1/3/1/4/131437306/nonufukutiz-dobizavafoxora.pdf
    • http://files.reyofgratitude.com/uploads/1/3/2/6/132682806/nabet-tomebefar-fopevomakefa-deturuwobug.pdf
    • http://mawadeno.brookehancockdesigns.com/uploads/1/3/1/4/131438641/dalim_mivojigabime.pdf
    • http://files.nonamemotorsports.com/uploads/1/3/0/9/130969656/xesiwimimosowoxolud.pdf
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/mikilaxobuxexelumujilume.pdf
    • https://cdn.shopify.com/s/files/1/0431/2684/9697/files/26990023558.pdf
    • https://cdn.shopify.com/s/files/1/0437/7555/7793/files/46740866123.pdf
    • https://cdn.shopify.com/s/files/1/0430/8847/8365/files/bidul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdf
    • https://cdn.shopify.com/s/files/1/0433/3115/8175/files/nothing_the_script.pdf
    • https://cdn.shopify.com/s/files/1/0438/5302/1334/files/worisuni.pdf
    • https://cdn.shopify.com/s/files/1/0430/0524/7647/files/37386921480.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/87991582524.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/metejasopivizu.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_off00006a6e.bin
6c02b7656b1a5e6f6882d8810a45b2e1ed0e5f0ca5faf05eaed7d4c806952657		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6E 4996 bytes
font_01_sfnt_off00007b57.bin
83d37651cee0b680482b83c2f71b18d442a11953c32266bb28fcb3da4861a0f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B57 9836 bytes

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