Malicious PDF — malware analysis report

Static analysis result for SHA-256 37dfd2e347db7615…

MALICIOUS

PDF

34.0 KB Created: 2020-09-06 12:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e0ff66abab949c364d9fb181bc1c2f8 SHA-1: 7ff1de16e02ecd8ca843f7e6b7b5b1aa750dcf2d SHA-256: 37dfd2e347db7615aab20c11cb92dd389a2e4c67c68a7952a3c7b81691ce6979
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of embedded external links, indicating a link farm. The primary malicious URL identified is https://ttraff.me/wix?keyword=bebo+song+free++honey+singh. The document body contains garbled text but also includes the same URLs, suggesting an attempt to disguise or embed them within the content. The presence of numerous links, including one pointing to a known redirector, strongly suggests a phishing or malware distribution attempt.

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.me/wix?keyword=bebo+song+free++honey+singh
    • https://cdn.shopify.com/s/files/1/0465/4563/3438/files/pofutafazi.pdf
    • https://cdn.shopify.com/s/files/1/0440/3914/3574/files/factory_physics_for_managers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5580/7641/files/fulvenes_aromaticity.pdf
    • https://static.usrfiles.com/ugd/b28561_d565994546734d2aaa3c00fd1ffe3d5b.pdf
    • https://static.usrfiles.com/ugd/50988c_e824a164079b4ad39144f9cb91d8d37c.pdf
    • https://static.usrfiles.com/ugd/a838c0_d213f337a2c84931b86c632a60fdd903.pdf
    • https://static.usrfiles.com/ugd/47b1e8_bcfd1961a3954e2cb2c892fde6829b33.pdf
    • https://static.usrfiles.com/ugd/b8c837_fe4d9c8af72f41e586bcfa1bbda90240.pdf
    • https://cdn.shopify.com/s/files/1/0432/4058/7423/files/61296602568.pdf
    • https://cdn.shopify.com/s/files/1/0430/7353/6161/files/tupadamedotokotasukun.pdf
    • https://cdn.shopify.com/s/files/1/0439/0171/4587/files/81653348283.pdf
    • https://cdn.shopify.com/s/files/1/0440/5710/0453/files/wibok.pdf
    • https://cdn.shopify.com/s/files/1/0440/3114/8197/files/jeludototabu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9569/5268/files/47037706371.pdf
    • https://cdn.shopify.com/s/files/1/0428/3577/1558/files/bahubali_2_songs_telugu_lo.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_off00004742.bin
27300ffcee6c4b37dc98b9cb82423832f9158d8cd48beee3a5fbb1684712e08c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4742 5076 bytes
font_01_sfnt_off00005896.bin
3f529688d04a52f57c348d56fd1ac8e5473582f0ebcd49302cf80e8ba2e078a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5896 10124 bytes

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