Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb0e5efa2930a77e…

MALICIOUS

PDF

46.9 KB Created: 2020-08-20 02:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6badabef55a24f997e0473619da295d8 SHA-1: 652859a1fb567ac5c5b517b2b3dcec4cf092c07e SHA-256: eb0e5efa2930a77edfbed8a41f9405e2b7b8ab0fecc4df70b5c458ccaded7441
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which are benign Shopify links. The document body, though partially corrupted, contains the URL that triggered the malicious redirector heuristic, suggesting a lure to a malicious site disguised as a PDF document. No scripts were extracted from this sample.

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=diferen%25C3%25A7a+entre+capitalismo+e+socialismo+pdf
    • http://files.vicenzas-crostoli.com/uploads/1/3/1/4/131483253/9062675.pdf
    • http://files.pruewalkerfasd.com/uploads/1/3/1/4/131452988/4851859.pdf
    • http://wukax.michellejnettles.com/uploads/1/3/0/7/130739678/110683.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9142/files/concluding_sentence_starters.pdf
    • https://cdn.shopify.com/s/files/1/0439/2982/9544/files/medium_access_control_in_mobile_computing.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/35044570987.pdf
    • https://cdn.shopify.com/s/files/1/0437/8099/7269/files/multifactorial_genetic_disorders.pdf
    • https://cdn.shopify.com/s/files/1/0431/9245/1232/files/sugafirapora.pdf
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/vogugunidot.pdf
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/32832035192.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6484/files/rukoxefu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8896/9882/files/adjectives_worksheets_for_grade_8_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/1775/7095/files/kcet_online_application_form_2018.pdf
    • https://cdn.shopify.com/s/files/1/0448/3996/0737/files/31742248174.pdf
    • https://cdn.shopify.com/s/files/1/0428/4134/2108/files/nuroxesadokimosonakireko.pdf
    • https://cdn.shopify.com/s/files/1/0435/7505/0395/files/92198886951.pdf
    • https://cdn.shopify.com/s/files/1/0437/5068/6874/files/mukavugujipuseba.pdf
    • https://cdn.shopify.com/s/files/1/0457/3324/9190/files/jodike.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/
    • https://cdn.shopify.com/s/files/1/0437/5068/6874/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074d7.bin
d79965c9b1006afa22d586a1f08da5fba295625a1efe9ec1cde2c5e616e92ea9
pdf-font-stream PDF embedded font (sfnt) at offset 0x74D7 5484 bytes
font_01_sfnt_off0000871b.bin
cd497a39665a021ccb3f7cd414b2f820bd8d6082a7e476f5674f83c6eb295bc1
pdf-font-stream PDF embedded font (sfnt) at offset 0x871B 12064 bytes