Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed8450cf4a78545e…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 23:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6775e9867ba0fd76e56a54c21d07d6ba SHA-1: ec2253a2b231d8a7502bcc73f7d6c26d27c373ae SHA-256: ed8450cf4a78545e0d0d0181579d48bd256dfef844d5561d8a219d4498f57c55
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.cc/pify?keyword=midas+trend+apresenta%25C3%25A7%25C3%25A3o+pdf, which likely serves as a gateway to further malicious content. The document body contains garbled text but also includes the same malicious URL and several benign-looking URLs hosted on Shopify, suggesting an attempt to disguise malicious activity within a large number of links.

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=midas+trend+apresenta%25C3%25A7%25C3%25A3o+pdf
    • http://files.bitsofbytes.co.uk/uploads/1/3/1/1/131163853/tosuxaz-getofero.pdf
    • http://files.lillyotasevic.ca/uploads/1/3/2/6/132682966/b5d2935.pdf
    • http://files.pencillarium.com/uploads/1/3/1/4/131482916/2482098.pdf
    • http://files.elginartist.com/uploads/1/3/2/8/132814958/wajumufetifi-tiluva-lipogokuwetaw-wivaruluwo.pdf
    • http://files.sharodickerson.com/uploads/1/3/1/3/131383247/xapawupono.pdf
    • https://cdn.shopify.com/s/files/1/0434/4869/6993/files/nintendo_ds_emulator_mac.pdf
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/jevovuritewoburorutekor.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5575/files/4619316641.pdf
    • https://cdn.shopify.com/s/files/1/0438/1668/1629/files/numob.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/60683659555.pdf
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/toxifijipe.pdf
    • https://cdn.shopify.com/s/files/1/0428/8564/4454/files/91023137013.pdf
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/lezivolasuti.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/nekurivilunibufegiponizuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/titoju.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/westchester_county_police_exams.pdf
    • https://cdn.shopify.com/s/files/1/0432/3016/7203/files/edit_text_in_file_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/wigefuwebarufakufopeluva.pdf
    • https://cdn.shopify.com/s/files/1/0433/8250/5628/files/mizijiruzo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/49391271967.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_off00006d18.bin
006e8ed8d1a46cbfa3d54c48b3d091de30b70ea5743ac5f72c0eb47aef1b5dd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D18 5508 bytes
font_01_sfnt_off00007f52.bin
62dc130bbdeb25b7541fbc2f549a88c8257998ef0d35eab11f9c51682654c110
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F52 12608 bytes