Malicious PDF — malware analysis report

Static analysis result for SHA-256 209f1fe7d530930f…

MALICIOUS

PDF

45.1 KB Created: 2020-08-15 03:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bcb29ecce443ee0e4a2e42d42fb4996 SHA-1: 0f9d5dbf87a89cd05ad76e8a4f37323f3f465f54 SHA-256: 209f1fe7d530930fc50888d31fe98d7effd4e6a08602b21d59b252cd1798391d
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector (ttraff.cc). The heuristic firings indicate this is a link farm designed to host numerous external PDF files. The primary purpose appears to be SEO manipulation or redirecting users to potentially malicious content, rather than direct exploitation within the PDF itself.

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.cc/pify?keyword=butynol+sheet+membrane
    • http://files.sunshineflowerswhl.com/uploads/1/3/2/8/132814906/5227210.pdf
    • http://sapej.tapleague.ca/uploads/1/3/0/7/130775795/c643b9.pdf
    • http://rurigavol.majestichouseofprayer.org/uploads/1/3/2/6/132695471/a3c390b61a8e90.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/zibavamoduvudaruwo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/27852915706.pdf
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/56275840738.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4396/files/riritur.pdf
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/tulomowubonijina.pdf
    • https://cdn.shopify.com/s/files/1/0436/5680/6553/files/89618678331.pdf
    • https://cdn.shopify.com/s/files/1/0431/8242/4215/files/16031440073.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/vhdl_clock_divider.pdf
    • https://cdn.shopify.com/s/files/1/0431/5149/1233/files/9872159303.pdf
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/the_alabaster_girl_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/5420/3031/files/abcam_western_blot_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0437/4803/2666/files/41296039963.pdf
    • https://cdn.shopify.com/s/files/1/0437/5147/3313/files/livro_epidemiologia_clinica_fletcher.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_off00005788.bin
ec21fbb2240124512689c05110e3a15fee30d5054e8a2560a9aea07ec0e4af59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5788 5216 bytes
font_01_sfnt_off00006911.bin
013d31f658cc84a3bcb25d44994b41463cb095d18d00cf0f281d840bdfb4aa2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6911 9256 bytes
font_02_sfnt_off0000831c.bin
7c75271afb16eb5de7b5b040e9bc6771d9971e7dad8568f5ac403619d0ae3bf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x831C 10072 bytes

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