Malicious PDF — malware analysis report

Static analysis result for SHA-256 dda0d7b0576d2fc0…

MALICIOUS

PDF

48.6 KB Created: 2020-08-07 18:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79b6d91355cf230e61e14dc22e047388 SHA-1: 3faf6049025e51c0a40d3a784da7d484d83cc0d7 SHA-256: dda0d7b0576d2fc0f8ea131b0bf3cd723c99a76d62ce33d856a2095fc1e8a155
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify, but one critical link redirects to known malicious infrastructure at 'ttraff.cc'. The document body text, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to lure the user to this redirector. No scripts were extracted, and the PDF structure itself is the vector for the malicious link.

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=benami+property+transactions+act+2020+pdf
    • http://files.huwhatwear.com/uploads/1/3/0/7/130776490/natevowuzuripix-bufibovevi.pdf
    • http://vumijujod.stefanomitrione.com/uploads/1/3/0/9/130969061/5295813.pdf
    • http://files.coastalbellyfest.com/uploads/1/3/0/7/130775565/jinuxejowogirob-bumubaxobotugar-pudixodavedunak-duzavigirisimas.pdf
    • http://files.glassexpressions.in/uploads/1/3/1/3/131380008/4636655.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.pdf
    • https://cdn.shopify.com/s/files/1/0436/0775/2866/files/java_long_to_int.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/kapawejekilewineze.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3782/files/68452175292.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/lonipagivewejagad.pdf
    • https://cdn.shopify.com/s/files/1/0439/3258/2056/files/nonuwa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/electron_configuration_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4843/files/89334476142.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_off00007f22.bin
4e33e5ed1d56179950c590e228d60702aabf609d11884ffb70afcda3a8ad454c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F22 5692 bytes
font_01_sfnt_off0000927d.bin
ed0ccdeaa0a2b9e7d6cd5c59991e673ea13f34007139a7ac12154d3135c9d18a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x927D 10304 bytes

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