Malicious PDF — malware analysis report

Static analysis result for SHA-256 da4de5eb50d3d249…

MALICIOUS

PDF

55.8 KB Created: 2020-09-02 21:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 894f9b6f3ad69a0feb26a0920f05b5c5 SHA-1: 6488151a5a7be9c5089f6a1ef602672f6fef1f6c SHA-256: da4de5eb50d3d24997901104523b521dbfcd560b7c9120f0f8d1f2b8ea07fc59
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, identified as a PDF link farm. One of these links, 'https://ttraff.club/wix?keyword=breeding+guide+pokemon+y', is flagged as a malicious redirector. The document body, though heavily corrupted, appears to contain text related to 'Breeding guide pokemon y', suggesting a lure to entice users to click the malicious link. The presence of numerous benign-looking links alongside the malicious one is a common tactic to obscure malicious intent.

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.club/wix?keyword=breeding+guide+pokemon+y
    • https://static.usrfiles.com/ugd/23924c_fa5420cec2244cd48ed344fa7989efb7.pdf
    • https://static.usrfiles.com/ugd/b8c837_8eb7c0c4a5ac4d84ac2deba233118111.pdf
    • https://static.usrfiles.com/ugd/909b15_b277c54f7ef040dab5bc921e986a39b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_2162611fe1b243b7a8ade55af71b7961.pdf
    • https://static.usrfiles.com/ugd/04e6f9_774c1b0a32d445ffbac980f31e84e784.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4025/files/40008907259.pdf
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/keguzazorus.pdf
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/gupezolinupesotebew.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1542/files/wemani.pdf
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/14298321506.pdf
    • https://cdn.shopify.com/s/files/1/0433/9875/8557/files/zigavopirol.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/63042858682.pdf
    • https://static.usrfiles.com/ugd/5a4aad_a07e662a495c4943a2e0cf9e69c03d83.pdf
    • https://static.usrfiles.com/ugd/aff7ca_448deb47aab64e5b97010767482977a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_f6a9e8a912694c90b04776d45c4eebdb.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_off00008ec4.bin
4935ac7a3463ae63ce57291da7160bba88c870a01a04a28827c24fbe84f830c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC4 3828 bytes
font_01_sfnt_off00009c62.bin
f55132f531a73366fbf25016c3c2a79d1a0f71111c0063f34433d14229814fbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C62 5072 bytes
font_02_sfnt_off0000ada2.bin
418cf4343ad092bd3669e35b6a967f579b6318db3e28fe0ab7246242051921d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADA2 10836 bytes

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