Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a19dcf1a842e5a…

MALICIOUS

PDF

38.7 KB Created: 2020-08-20 05:02:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6facd9030e636d1870855997f198e6b8 SHA-1: 2b27858c7014f831f3c17e35c72bb74a35f2d415 SHA-256: e7a19dcf1a842e5a2ea76dc0fcffbf27c8beda2fefdfeb9ae7157de297488e78
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to shopify.com domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a 'leadership assessment survey template' and the malicious URL. This indicates a phishing attempt designed to lure users to a malicious site.

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=leadership+assessment+survey+template
    • http://files.mello-works.com/uploads/1/3/0/7/130739826/4469358.pdf
    • https://cdn.shopify.com/s/files/1/0428/6028/2023/files/fesufobupibibukiremuzaw.pdf
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/xomujesogelefibes.pdf
    • https://cdn.shopify.com/s/files/1/0430/0839/3367/files/project_completion_report_of_ngo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7842/6534/files/86551689443.pdf
    • https://cdn.shopify.com/s/files/1/0433/4324/9576/files/75334665637.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/abiraterone_acetate_synthesis.pdf
    • https://cdn.shopify.com/s/files/1/0434/2824/9767/files/evolutionary_psychology_101_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/1139/2167/files/43402140127.pdf
    • https://cdn.shopify.com/s/files/1/0428/6863/7862/files/owl._carousel._min._js_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/2668/5850/files/application_of_partial_derivatives_in_economics.pdf
    • https://cdn.shopify.com/s/files/1/0437/8702/6590/files/best_rogue_dps_spec.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29331550606.pdf
    • https://cdn.shopify.com/s/files/1/0436/9671/7977/files/greek_mythology_gods_and_goddesses_names_and_powers.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_off00005a7f.bin
ca15fe23bbd6d04c3a49750b1068ef68c8cf9eb9864d90e82ce27f853a2a0a7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7F 5304 bytes
font_01_sfnt_off00006c71.bin
78c1b0f5b9325a280aa842aee676a44b794335a5de2bb9305b955de75b63afdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C71 9816 bytes

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