Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01b46e429d37cdb…

MALICIOUS

PDF

43.0 KB Created: 2020-08-02 07:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c42f40ced1459c1498a363fabed8df79 SHA-1: 485c3e6e33ac316b3f5906590880edc2788ff663 SHA-256: e01b46e429d37cdb4ce9d899ab7331f16e3af0a452ce822d3820649336b76bf5
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. The primary intent appears to be redirecting the user to malicious infrastructure.

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/pify?keyword=black+demon+slayer+task
    • http://files.projectnohunger.org/uploads/1/3/1/8/131856100/tenitod.pdf
    • http://files.agathahomehealth.com/uploads/1/3/1/3/131379792/potav-mudikojoki-siwajozurijulem-vegiwajeve.pdf
    • http://files.michaelsigler.com/uploads/1/3/1/4/131410234/2b5aac1f2e06.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/jobulufavovotupax.pdf
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/livisimezuzelawi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/juroxevusoligabi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2801/files/95349668686.pdf
    • https://cdn.shopify.com/s/files/1/0432/0077/4307/files/relopekosurelajunis.pdf
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/61262614495.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/tivusaxirenakativ.pdf
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/naguxixeraseraveba.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/lizimosawi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/koxanokewegonex.pdf
    • https://cdn.shopify.com/s/files/1/0429/0081/6028/files/precalculus_with_limits.pdf
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/99138942235.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_off00006ad4.bin
bf7363916c4b4e36800ab1ce541d11f2bd8c8e122790edd8b9c79130d67fac36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD4 5300 bytes
font_01_sfnt_off00007ccb.bin
41fff8a7b2d8203dd7ad13ec9a06ddd26ba0d24778bcc405b9e98870e96b2814		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCB 10128 bytes

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