Malicious PDF — malware analysis report

Static analysis result for SHA-256 c60a912450b15949…

MALICIOUS

PDF

40.5 KB Created: 2020-08-30 07:36:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4387c0619642e3698745403cd11ac23a SHA-1: 7b81a103b0865d3fc91b74ae410bd2e1a77e1140 SHA-256: c60a912450b1594923a5a151ba26d6a12fa17b80265c24924ff58273af4e901e
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to a malicious URL, specifically 'https://ttraff.ru/wix?keyword=spot+extra+plat+leroy+merlin'. This is indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The embedded document body text, though heavily corrupted, contains references to the redirector URL and other URLs hosted on Shopify, which are likely part of the link farm. The primary intent appears to be directing users to malicious infrastructure.

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=spot+extra+plat+leroy+merlin
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/foguzus.pdf
    • https://cdn.shopify.com/s/files/1/0438/2402/1664/files/wogovazizojetat.pdf
    • https://cdn.shopify.com/s/files/1/0429/6769/5523/files/40339364778.pdf
    • https://cdn.shopify.com/s/files/1/0428/3806/5319/files/75275976072.pdf
    • https://static.usrfiles.com/ugd/b8c837_2694293acdc94bc78151d85ae443748c.pdf
    • https://static.usrfiles.com/ugd/be19e1_10db05e916874ee1817e8137188abea8.pdf
    • https://static.usrfiles.com/ugd/b8c837_1bb815f7052643ddb9520f07d89f548e.pdf
    • https://static.usrfiles.com/ugd/353d00_5d14b34282624ac3b5f2612648e80b40.pdf
    • https://static.usrfiles.com/ugd/38bf1f_2cb90eb7dc4a4eeeba744b57166a9744.pdf
    • https://cdn.shopify.com/s/files/1/0435/7259/2801/files/free_lightroom_mobile_presets_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/70535191639.pdf
    • https://cdn.shopify.com/s/files/1/0436/7250/2425/files/53685950225.pdf
    • https://cdn.shopify.com/s/files/1/0438/5321/7952/files/code_lyoko_ps2.pdf
    • https://cdn.shopify.com/s/files/1/0440/3075/4966/files/vejajukesajukidago.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_off00004900.bin
cbb764d7cf596a98dff69f0427e1eca363596ad727e41ec247be2fae2a58ba0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4900 4848 bytes
font_01_sfnt_off0000595e.bin
783a64462c589d037cd55713f9fe31c56706a6dd826159514be2b8c92ceca2c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x595E 14288 bytes
font_02_sfnt_off0000852a.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x852A 4324 bytes

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