Malicious PDF — malware analysis report

Static analysis result for SHA-256 e79eb2a6492f701e…

MALICIOUS

PDF

43.3 KB Created: 2020-09-01 06:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b2123aa373c924861a2cd1f20e21afa SHA-1: 2d54309be7fed190344ec789861710f86db15a03 SHA-256: e79eb2a6492f701ef95482216bedeb41766ddc3708f511a897cef48d26ba3b55
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'handling stress worksheets' and embeds a link that redirects to a known malicious domain. The file also exhibits characteristics of a link farm, with numerous external PDF links, many pointing to static.usrfiles.com. The primary malicious link is https://ttraff.cc/wix?keyword=how+to+handle+stress+worksheets, which is flagged as a malicious redirector.

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/wix?keyword=how+to+handle+stress+worksheets
    • https://static.usrfiles.com/ugd/f1780b_9cdb8ae8fb33458099e1d296cbdd0c34.pdf
    • https://static.usrfiles.com/ugd/b8c837_21106e17e4e34c569abac13d06c60374.pdf
    • https://static.usrfiles.com/ugd/6924eb_b17b3032f5584de396d0e9141312a855.pdf
    • https://static.usrfiles.com/ugd/76156b_8ebdfb15c35e4bc68521d8b65f1e167e.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/sapul.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/3167855487.pdf
    • https://static.usrfiles.com/ugd/defcb2_08918517d5df4713af9c52de703d93a6.pdf
    • https://static.usrfiles.com/ugd/ade4e6_2e8fc0d516494f3ca31da70c6c5d2c5a.pdf
    • https://static.usrfiles.com/ugd/0bcf16_8f1fff20f942463a82d04bbc1d9a98ae.pdf
    • https://static.usrfiles.com/ugd/b7082a_88778da69728497c92e679bb0948157d.pdf
    • https://cdn.shopify.com/s/files/1/0430/1897/7443/files/numro_de_la_carte_green_dot_moneypa.pdf
    • https://cdn.shopify.com/s/files/1/0472/3313/8853/files/windows_driver_foundation_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3636/files/zulamotireraxuxukowon.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/anthem_bcbs_medication_prior_auth_form.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_off00006bcc.bin
5e3f38c48fd2d637a36559076907ac5518b8103d3ee0ad1c133be497d9ee07e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCC 5032 bytes
font_01_sfnt_off00007cec.bin
eb262d2c44c601b904fa62df4ae2c943f10a0dc59bdec44648810ed503a00f1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CEC 10244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.