Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b7bf91dc9f5997…

MALICIOUS

PDF

44.8 KB Created: 2020-09-07 04:30:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8235c5f5c53936f2e2a8b4bbd69b84e3 SHA-1: 9f165c686279038f0eec983032b0ac8b4c8bc70a SHA-256: 47b7bf91dc9f59979e8de9b13ff3b0b4d560581f1b0919103cc80587b218e0fc
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, which is likely used to funnel users to phishing sites or malware. The document also exhibits characteristics of a PDF link farm, embedding numerous links to external PDFs, many hosted on static.usrfiles.com. This suggests a campaign focused on driving traffic through deceptive links, potentially for SEO manipulation or to distribute further payloads.

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=project+implementation+timeline+template
    • https://static.usrfiles.com/ugd/87ad98_b26213222d6341628870fa50731a9f68.pdf
    • https://static.usrfiles.com/ugd/824332_406ef99f652d41c5850431e8b65ea0dd.pdf
    • https://static.usrfiles.com/ugd/3b7182_077a5a5cd11a4eb4a540bff3c23016de.pdf
    • https://static.usrfiles.com/ugd/430cb2_da441f91706447abacf46304d69829ea.pdf
    • https://static.usrfiles.com/ugd/205ae4_c1d6e216adcc48b58e1dacae860b5749.pdf
    • https://static.usrfiles.com/ugd/b8c837_55e7767d0cdd483a97363b0b4daa3e13.pdf
    • https://static.usrfiles.com/ugd/64db51_9a8278680cce4c45bf3fd073ef34c6de.pdf
    • https://static.usrfiles.com/ugd/238140_816ab685d7b6450abb97d49e270934fb.pdf
    • https://static.usrfiles.com/ugd/b7306e_c2363eefb0f348569e4f202f69e39203.pdf
    • https://static.usrfiles.com/ugd/bfbc46_db40ca4bbf65493c9e35747ca2344b56.pdf
    • https://static.usrfiles.com/ugd/b48b60_e2419ad5ec1445e4b4b9814e984ec1e2.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/79857642409.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/palirinuzuvot.pdf
    • https://cdn.shopify.com/s/files/1/0437/1428/1625/files/55409449409.pdf
    • https://cdn.shopify.com/s/files/1/0434/6727/6454/files/79237378650.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_off000072b1.bin
f7f9dccb08606976351d70e3eab9f5312ebdee9a9a594051ee8b1d15a8fe5725		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B1 4976 bytes
font_01_sfnt_off00008388.bin
6f46eeb320f27638f97ca68e9d9c3fc30197d7332eb3a84ee21dcb0c7ff3a615		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8388 10216 bytes

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