Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e06df63716e553c…

MALICIOUS

PDF

51.3 KB Created: 2020-08-01 11:40:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0d185ea57bba4c96218a31f1b8f9f6d SHA-1: 83d3141fa2e92956be5f11ebbeb69753de33881f SHA-256: 3e06df63716e553c6a3e3a4c26eed30f6bcf54d9452b56d638489bb256d1011d
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the ultimate destination. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to lure users to malicious content under the guise of news.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=cnn+gigapixel+inauguration
    • http://files.sanctuaries.org/uploads/1/3/1/8/131856443/jebegesogitesol.pdf
    • http://files.hcs-conference.com/uploads/1/3/2/7/132741029/lozepezerixupuz.pdf
    • http://files.bodycareclinicriverside.com/uploads/1/3/1/0/131069812/bokodokukaf-pamapanivoj.pdf
    • http://files.sarahjayandcompany.com/uploads/1/3/1/6/131636914/6116916.pdf
    • http://files.canwemummy.com/uploads/1/3/0/7/130775868/wazosasopa_puripaxonega.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/resalunapemuxerezawoveb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/dilosomazazekosak.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/17478866281.pdf
    • https://cdn.shopify.com/s/files/1/0429/7841/0655/files/80753464636.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/zibugedosejipijo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6868/5464/files/516274390.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/faxefosijakadoros.pdf
    • https://cdn.shopify.com/s/files/1/0435/0482/8580/files/51852358369.pdf
    • https://cdn.shopify.com/s/files/1/0438/5082/5893/files/numbering_all_the_bones.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/vizariwoluzexumiteva.pdf
    • https://cdn.shopify.com/s/files/1/0430/1773/2259/files/97779274970.pdf
    • https://cdn.shopify.com/s/files/1/0428/9203/4211/files/27756715519.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0643/files/how_to_sort_in_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.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/1/0428/9835/8432/files/65294746239.p

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065e6.bin
e98fb34fced8bc7a58b4d30c48a9a60090004e08aa5479b55042d0d5ee45f350		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E6 11472 bytes
font_01_sfnt_off00008b47.bin
d8282118276dbef51d9ece02b090781ac7a76d2755038b327b140445259d6443		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B47 4780 bytes
font_02_sfnt_off00009ba0.bin
1cdd32495cc705bebdc35ee91b52f2c354c6e0a83ee7f86b42d1897ebe69fd63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA0 10024 bytes

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