Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2a0bb7845cef62b…

MALICIOUS

PDF

44.5 KB Created: 2020-08-31 16:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf708caa66833b2805bf2c4ab28d6927 SHA-1: 4ba5c1751b802bc2ac6b0feb06b331c53c2067f4 SHA-256: d2a0bb7845cef62be65c93f842912b30da7e62742e29920244f38e8d1c6d5857
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, https://ttraff.com/wix?keyword=amygdalite+traitement+pdf, is flagged as a known malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attempt to lure users to malicious websites, likely for phishing or malware delivery. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/wix?keyword=amygdalite+traitement+pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/pwn_the_sat.pdf
    • https://cdn.shopify.com/s/files/1/0430/8349/7623/files/moredofodato.pdf
    • https://cdn.shopify.com/s/files/1/0431/8114/6280/files/josetavajanenasu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/recuperare_foto_cancellate_da_android_senza_root.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/advanced_data_structures_and_algorithms_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/goladipum.pdf
    • https://cdn.shopify.com/s/files/1/0432/4006/3143/files/bobina_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3924/files/8752803906.pdf
    • https://cdn.shopify.com/s/files/1/0437/2758/5445/files/19967726664.pdf
    • https://static.usrfiles.com/ugd/0c4177_aa3d24d7b1b44d6db8d7fb24769b4422.pdf
    • https://static.usrfiles.com/ugd/221f3a_952443db8caf48e0a8e6fc5394dd76c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_b2f3e755c7684819adf616f6772488ab.pdf
    • https://static.usrfiles.com/ugd/9cb927_bc3f8594e0ab4dbea7dc725cd4c68bdc.pdf
    • https://static.usrfiles.com/ugd/b8c837_5438891dc5434a468c13ac8b7442eab9.pdf
    • https://static.usrfiles.com/ugd/b8c837_205fb915f4b944ec9970dbbaa2acd521.pdf
    • https://static.usrfiles.com/ugd/0d002d_46685bdaaad544668d182ab1e0d64a5c.pdf
    • https://static.usrfiles.com/ugd/9edd50_7492f62d00084b2880b4736375cede7f.pdf
    • https://static.usrfiles.com/ugd/cfbfd2_700848c24a8d4824978854b6aa8f09f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_05380624090343b5bca55777ce2fa750.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_off00006adf.bin
9886e83c0370854208aadd01cc5794c267c1f5921725e0b400ade85e16d7b1ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADF 5272 bytes
font_01_sfnt_off00007cc7.bin
64e54f4b93101456607024bc7310fccc1084f7b53c55611d5bf22c170f5c7325
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC7 12472 bytes