Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca15a9d033b250ee…

MALICIOUS

PDF

44.2 KB Created: 2020-07-29 10:30:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46ff82df0af74aee920a109692ecd64b SHA-1: 885a74a62ba7a3c1a78e5d3269f74e5da13c8859 SHA-256: ca15a9d033b250eef82c7260d72937999f29ab103e3b98507c1fe8e82c367945
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as an 'alkaline diet book pdf' and redirects to malicious infrastructure. The primary malicious URL is ttraff.cc, which is known for redirecting to further malicious content. The document body is heavily obfuscated and does not provide further clues.

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=alkaline+diet+book+pdf
    • http://files.atulocal1309.com/uploads/1/3/0/8/130813934/ruserogule-jeluz-tinolawitanib.pdf
    • http://files.jasonlevinlcsw.com/uploads/1/3/2/7/132741241/bd655cd26.pdf
    • http://files.assemblygallery.ca/uploads/1/3/2/3/132303005/6a4036aab0a70a.pdf
    • http://files.fmpcdover.org/uploads/1/3/0/8/130813511/db8a62d.pdf
    • http://files.danstrings-and-more.com/uploads/1/3/0/8/130874201/bakowe.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/27003427546.pdf
    • https://cdn.shopify.com/s/files/1/0431/0371/5481/files/14916692771.pdf
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/wejuwatovuwezobuvej.pdf
    • https://cdn.shopify.com/s/files/1/0438/6127/8885/files/58784932986.pdf
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/xufuderixovojixoje.pdf
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/kexuwupegupumosirirawewud.pdf
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/duxixogiwobitirak.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/49025465187.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/bilutuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/0350/9914/files/kogosu.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_off00006f7a.bin
79d19d512e25e3bf72c860a6a699881cef169a3bcd536459e511424ccbab0eea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7A 4740 bytes
font_01_sfnt_off00007f9e.bin
23c7442c73c86001c4ae8e7bc28b29eb2847a09870bd2bc5c57b13d14b522fc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9E 10132 bytes

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