Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab90d64ad85247cc…

MALICIOUS

PDF

38.9 KB Created: 2020-08-31 15:35:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a6ad49a5ea547efec69787c0242d1b6 SHA-1: 1e94095e9204c6812e6094356889b8699ed42892 SHA-256: ab90d64ad85247ccd66ca048840514eb2e87bb70b63bbdf13d6df95b7779f5d6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=the+sims+2+gba+guide'. This URL is likely part of a phishing or scam campaign, attempting to lure users to malicious content. The document body also contains this URL and numerous other links to PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.

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/pify?keyword=the+sims+2+gba+guide
    • https://static.usrfiles.com/ugd/fb5067_33cbc064dd5b4571aa7cf66d81d2b4d4.pdf
    • https://static.usrfiles.com/ugd/ace02d_0f7682032c4c4ea298a6b89802016502.pdf
    • https://static.usrfiles.com/ugd/1df9ea_c34fe298584547e49de954bc568da32f.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a4153a7e19d47fa837278ad535180e7.pdf
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/gogaxefoginixexanulofol.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9238/files/sobila.pdf
    • https://cdn.shopify.com/s/files/1/0435/0771/2155/files/pasobodovijobapiwe.pdf
    • https://cdn.shopify.com/s/files/1/0438/6983/1323/files/wwe_2k15_community_creations.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/matplotlib_scatter_plot.pdf
    • https://cdn.shopify.com/s/files/1/0431/0060/2525/files/43232133039.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesitoxerevujadutag.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_off00005ab9.bin
cc2ea588dccc0ce5feddfa92fd0dd016390fe421a99beac1e363b9c4b127d806		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB9 5332 bytes
font_01_sfnt_off00006cb0.bin
8daa29d8705e42f07dff96e28b28b7884309e7b08064bc635d7e5c9dc7a113ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 10144 bytes

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