Malicious PDF — malware analysis report

Static analysis result for SHA-256 8abf4cbde0cfde36…

MALICIOUS

PDF

59.2 KB Created: 2020-07-30 15:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cf88fdbaea63ae8d5a50a73ce9e7a0f SHA-1: b8ed3fc84e3050ea8592a46c9020de0ffb3e36b5 SHA-256: 8abf4cbde0cfde36cd93870767319f16b3f2b3a2493bc83fd4e53f1468f40bb9
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on 'cdn.shopify.com' and other domains, suggesting an attempt to manipulate search engine results or distribute content. The document body is heavily obfuscated and unreadable, providing no further context.

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=black+panther+comic+book+pdf
    • http://files.uvoholicsanonymous.com/uploads/1/3/1/3/131383648/refejuperi-ziviw.pdf
    • http://files.blackhillsnutrition.com/uploads/1/3/0/9/130969774/f16ba94f66233d.pdf
    • http://files.westsideyouthministry.com/uploads/1/3/1/6/131637169/9a6d19c6a2d6.pdf
    • http://files.jaidetimmgarcia.com/uploads/1/3/0/8/130814085/9989934.pdf
    • http://files.americancollegegenerosity.com/uploads/1/3/0/7/130775707/wimorumax.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/53081760763.pdf
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/jovudelizokoxav.pdf
    • https://cdn.shopify.com/s/files/1/0427/5997/9174/files/64440715316.pdf
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/77333469261.pdf
    • https://cdn.shopify.com/s/files/1/0438/2962/4982/files/dijefiwuredise.pdf
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/82191219458.pdf
    • https://cdn.shopify.com/s/files/1/0432/8964/1116/files/gexajifovufudebulakapowon.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/49013339561.pdf
    • https://cdn.shopify.com/s/files/1/0439/7491/8302/files/xolukokufaminapevirezix.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/13585149486.pdf
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/39069820895.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_off0000aa2d.bin
1bf87da182b3e847ddaf787c240465add1c213af0065febac7994d7e9da27a1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA2D 5256 bytes
font_01_sfnt_off0000bbcc.bin
8fac9ab7799ac1dbb4fe201353356f3df19fce5f523712ead6c96cf448825453		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBCC 10328 bytes

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