Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0247beee6d23ef5…

MALICIOUS

PDF

44.0 KB Created: 2020-08-29 05:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 550a89ce649050baf6a68fc460b12233 SHA-1: f98cff80ad01367ff349d3c950535768898af998 SHA-256: f0247beee6d23ef5d73e7c77227d9124e0ed6c40ebb2ef1c3373abd5f86181d1
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=friar+laurence+soliloquy'. This indicates an attempt to direct the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The PDF also contains a link farm heuristic, suggesting it's part of a larger SEO poisoning campaign.

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/wix?keyword=friar+laurence+soliloquy
    • https://static.usrfiles.com/ugd/b8c837_4f8343cff1d749209f13e85b872057f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_6c185d7ccd894776b529c4e875233a88.pdf
    • https://static.usrfiles.com/ugd/b8c837_baadac04fac64f9b8afedd72cb7e4441.pdf
    • https://static.usrfiles.com/ugd/b8c837_525eb7ff9f524104a67912ea57094c03.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/lutexigowikip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6735074847.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/japisidufujejo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/32419329993.pdf
    • https://cdn.shopify.com/s/files/1/0432/2279/4395/files/38326396413.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/garuboruwivanufimeve.pdf
    • https://cdn.shopify.com/s/files/1/0434/8031/8118/files/vatibuwulujilifuxotenuti.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5190/files/theeran_full_songs_masstamilan.pdf
    • https://static.usrfiles.com/ugd/b8c837_7600b00ee34841ea871ac60a9762bf49.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f6e7560c76046b39e6c2e43fc9f667f.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae95686640544d5ca30e516b118348ac.pdf
    • https://static.usrfiles.com/ugd/b8c837_61dc039615f94bcd81525e48d6b394d8.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_off00006dc8.bin
9e9428fd4ff3e165ddd6cdbd52d054055ca6a9aae49f86e90d369b389cd6db72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC8 4976 bytes
font_01_sfnt_off00007ec3.bin
b79e29fc42fb44234eabb0e76a4ee097c095d2b060b713019d7f0989d2fada56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC3 10696 bytes

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