Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d9da6afcae5d945…

MALICIOUS

PDF

54.1 KB Created: 2020-08-30 01:02:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55d1f55c5bc82da14f255c3e7c38404a SHA-1: 15a0b3515308b3beeb27efc8d13c6e0984475a59 SHA-256: 7d9da6afcae5d945e4f806744eae4a27fc47ce3dec1fa7c56c77ce747313ef00
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL, suggesting a social engineering lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, further supporting the lure aspect.

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/wix?keyword=museum+of+islamic+art+cairo+pdf
    • https://static.usrfiles.com/ugd/b8c837_07d0c78823af452eb49be98f48523b22.pdf
    • https://static.usrfiles.com/ugd/0f5b72_f8271a261344485f820790ffe5218edf.pdf
    • https://static.usrfiles.com/ugd/c8a981_dc7257d7fa704f0e939a8ba58520c6bb.pdf
    • https://static.usrfiles.com/ugd/81d6a4_deae6c33933544a186783a684787ee20.pdf
    • https://static.usrfiles.com/ugd/097bd5_080156649e1d42569dcc7b5c3478cb55.pdf
    • https://static.usrfiles.com/ugd/b8c837_a86d8827fcc54690a3be15e679b07105.pdf
    • https://static.usrfiles.com/ugd/b8c837_442329143f1244b99b68507da90d1fdc.pdf
    • https://static.usrfiles.com/ugd/6c98bc_f682208688d94a83b3910254302e6a81.pdf
    • https://cdn.shopify.com/s/files/1/0439/3625/2072/files/jekhane_bhooter_bhoy_full_movie_720p.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/40983657374.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/titagi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/ivoclar_blueline_shade_guide.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
stream_006_off0000b00a.bin
7ada4c0d93998f326d86132967c783ec2c46c0bb15af9372c0f9f4586109cc12		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB00A 17848 bytes
font_00_sfnt_off00007b20.bin
e0dcda5e09756c02c67ab1b6284609ffb613790ce1c79d1c133af9a117d0d12f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B20 5304 bytes
font_01_sfnt_off00008d1c.bin
93b605322dd2b1f546a247d925642b35d943b0b87165045d53e853aedf7038d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D1C 10140 bytes

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