Malicious PDF — malware analysis report

Static analysis result for SHA-256 f102b50697da5290…

MALICIOUS

PDF

42.0 KB Created: 2020-07-27 18:41:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 613fccb4316406ed7070b1ba47eec49e SHA-1: 6ab636ffde6488f5875b57073755abd095f3cbd3 SHA-256: f102b50697da5290ccc283aea68feba1b98cd6f50d453734211b279de8cc1d5e
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, a technique often used in SEO poisoning or link farm attacks. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=phrase+versus+clause+worksheet', is flagged as a known malicious redirector. Another embedded URL, 'https://cdn.shopify.com/s/files/1/0428/2885/7503/files/91417596169.pdf', is part of a larger set of PDF links found within the document.

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.ru/pify?keyword=phrase+versus+clause+worksheet
    • http://files.kocyener.com/uploads/1/3/2/8/132815791/8119781.pdf
    • http://files.mobile-massage-sydney.com/uploads/1/3/1/4/131406749/5d4c81.pdf
    • http://files.dangelorealestate.com/uploads/1/3/0/9/130969004/sotarinizokin.pdf
    • http://files.koreanatoledo.com/uploads/1/3/1/6/131607063/xiluvexedosa.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/91417596169.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lalosukiwafigoledexefes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/saxakowa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/73363311778.pdf
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/1945512618.pdf
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/25943792860.pdf
    • https://cdn.shopify.com/s/files/1/0432/6188/6627/files/dudadajen.pdf
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/xumezajajapeterodu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/30700905503.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/vovokifoxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/9910/2115/files/pedifovisimajarunenesubu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/zukexuxukobufuwuvu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8175/1964/files/89782456408.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_off000067de.bin
903b6383ef64e134d16ae6a7d4bb1d2e925a19daa59e8a92801595c8cb9dcdb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67DE 4832 bytes
font_01_sfnt_off00007873.bin
b5c56891203390383db68bfe1ec34675961775e849e86b6a22ea73011e106937		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7873 10024 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.