Malicious PDF — malware analysis report

Static analysis result for SHA-256 d096db7f4a40317c…

MALICIOUS

PDF

41.9 KB Created: 2020-08-21 21:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ed442d9ec23de515a83007501b65dd4 SHA-1: d4b5a0a867de8a2a42d3f5e28192c6d0e8ba13b3 SHA-256: d096db7f4a40317c1e3bf8cdb968d67e786b11c9997e29ec9072155377c05b18
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL and a reference to a song title, likely as a lure. The PDF also contains a large number of links to external PDFs hosted on Shopify, potentially as part of a link farm to improve search engine ranking for malicious content. 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.com/pify?keyword=o%2527+saki+saki+song++mp4
    • http://goxirerer.johnedwardwalsh.com/uploads/1/3/0/8/130874642/zuwawatu_fikorekup_kowinotopijofeg.pdf
    • https://cdn.shopify.com/s/files/1/0439/9159/7214/files/31285904720.pdf
    • https://cdn.shopify.com/s/files/1/0451/9782/0053/files/christianity_and_african_traditional_religion.pdf
    • https://cdn.shopify.com/s/files/1/0434/2192/5543/files/book_for_learning_japanese.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/safatidofirajizegi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.pdf
    • https://cdn.shopify.com/s/files/1/0434/0783/5292/files/mariage_d_amour_piano_notes.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/43399600974.pdf
    • https://cdn.shopify.com/s/files/1/0437/3141/9287/files/varus_knee_deformity_icd_10.pdf
    • https://cdn.shopify.com/s/files/1/0432/0962/1665/files/rugademe.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/fagovigererawop.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_off000048e7.bin
8c386f1f7b070fc13a0c200d4411fe9904399c6cc8d0adc1cef72d66e3869001		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48E7 5224 bytes
font_01_sfnt_off00005aad.bin
6670b715fccff0493818bdb5d4cb0ec96605b4b05b2bb2443ea95ec48e92aa6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAD 10072 bytes
font_02_sfnt_off00007d6a.bin
e58e8e8d3617fa2f52d62469859eb662c26c1c1537dc21f5cc6f1aa71eaa6aed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6A 18776 bytes

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