Malicious PDF — malware analysis report

Static analysis result for SHA-256 f90cbd19f92cddf9…

MALICIOUS

PDF

48.1 KB Created: 2020-08-28 23:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 659c01e1548d1bf551d3f0dc2d31bdc0 SHA-1: dd08db48840a22cd64209dfd4ae87f9397140572 SHA-256: f90cbd19f92cddf93b7287241775a515a9d26de43a70c6ff895ea57a98c49c7c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One of the embedded URLs, 'https://ttraff.ru/wix?keyword=ffxiv+containment+bay+s1t7+extreme+guide', is flagged as a known malicious redirector. The document body appears to be obfuscated or corrupted, but the presence of numerous links, including the malicious one, strongly suggests a phishing or redirection attack.

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=ffxiv+containment+bay+s1t7+extreme+guide
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/prueba_de_antidoping_en_orina.pdf
    • https://cdn.shopify.com/s/files/1/0435/1927/9258/files/66608710772.pdf
    • https://cdn.shopify.com/s/files/1/0433/7745/9365/files/84498965744.pdf
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/hotel_formule_1_villeneuve_d_ascq_adresse.pdf
    • https://static.usrfiles.com/ugd/b8c837_2dfc249b14ab4e81a7130869703d6bdf.pdf
    • https://static.usrfiles.com/ugd/b8c837_023fcff311f84dc89e92900234c5be53.pdf
    • https://static.usrfiles.com/ugd/b8c837_650183f1d51f413196dcc08892f593b3.pdf
    • https://static.usrfiles.com/ugd/b8c837_e361f78b2b334e9f896c843e33f55519.pdf
    • https://static.usrfiles.com/ugd/b8c837_1902b7e3d2804492a3faf56f5da7441f.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/97877765874.pdf
    • https://cdn.shopify.com/s/files/1/0434/6095/2229/files/50448112597.pdf
    • https://cdn.shopify.com/s/files/1/0440/2456/1829/files/zekaboziv.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/12075958878.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9736/files/miller_thunderbolt_xl.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_off0000673e.bin
6bfca323f43d622e1d2db47d330780dc810318521605fa138afc0ed1a13045d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x673E 5768 bytes
font_01_sfnt_off00007ad1.bin
c1b51320c1889f01137684a01e4d66fd199de7ef5c9953b8aafa84e593fb512a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD1 10184 bytes
font_02_sfnt_off00009ddc.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDC 16092 bytes

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