Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25dabeff015ddc5…

MALICIOUS

PDF

44.9 KB Created: 2020-08-30 16:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff7d3b61434a632431c861ec5377b15b SHA-1: ed33065d54e0b2eda5c294d3311fcd82530d80cc SHA-256: d25dabeff015ddc5c008cb9e6c42b4820b1d8d1bd642dcc8f0a5016d2f771cd5
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL. The presence of a link farm suggests an attempt to distribute malicious content or conduct phishing. No scripts were extracted, limiting further analysis of execution behavior.

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/wix?keyword=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BC%25D1%2583%25D0%25B7%25D1%258B%25D0%25BA%25D1%2583+%25D0%25BA%25D0%25BE%25D1%2580%25D0%25BE%25D0%25BD%25D0%25B0
    • https://cdn.shopify.com/s/files/1/0432/6536/0027/files/zenosojetix.pdf
    • https://cdn.shopify.com/s/files/1/0440/5687/1062/files/kizagugozirejuzapoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/serivuxepe.pdf
    • https://cdn.shopify.com/s/files/1/0465/3341/0975/files/diep_io_developer.pdf
    • https://cdn.shopify.com/s/files/1/0445/8446/8644/files/learn_python_for_beginners_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/tavemoxuromixop.pdf
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/.pdf
    • https://cdn.shopify.com/s/files/1/0436/8472/4889/files/gezogifukinev.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/sodurasudezi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/ligadura_del_cordon_umbilical.pdf
    • https://cdn.shopify.com/s/files/1/0438/6501/4432/files/askep_bisul.pdf
    • https://static.usrfiles.com/ugd/b8c837_6263b29036f743c0a76294c39c240abd.pdf
    • https://static.usrfiles.com/ugd/7c3584_13af205c0a8a4846a4d3c3a12847400c.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047cd.bin
3bcde8815c9784837ff723667eaa5697261ed173086ed7a72173fffa011bb39f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47CD 5464 bytes
font_01_sfnt_off000059c6.bin
0342256f4db61cc7d23c53ed44713dd7a5c1ab849ab81e351689bf0d1a744c2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C6 14772 bytes
font_02_sfnt_off00008703.bin
6d90deea80c9562dfc95788e3c6649368c0861abcda43cba68ceed3d6d41a3d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8703 18408 bytes

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