Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb5e51f6051937d…

MALICIOUS

PDF

45.6 KB Created: 2020-08-22 23:17:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 624e8d06734045e8027612aea7178703 SHA-1: 48e02c9b35f33ca8989bf457793ac0a7e13fdb6a SHA-256: eeb5e51f6051937d2999c4745efeb83f3a52e7be3d8c5ac61afe70943952b929
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=guidelines+for+colonoscopy+sedation'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, suggesting an attempt to obscure the final malicious destination or to appear as legitimate content. 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.cc/pify?keyword=guidelines+for+colonoscopy+sedation
    • http://segilak.oegallery.nz/uploads/1/3/0/8/130874063/3864854.pdf
    • http://xugoxega.doverchoirs.com/uploads/1/3/1/6/131606875/tutegasubupi.pdf
    • http://files.amycousinjewelry.com/uploads/1/3/0/7/130739674/vabarilugumosi.pdf
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/kisaviwarunukuvejetoja.pdf
    • https://cdn.shopify.com/s/files/1/0439/5086/6590/files/possessive_adjectives_exercises_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0434/0157/6604/files/73572444083.pdf
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/understanding_symbolic_logic_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/8701/7637/files/chemistry_equation.pdf
    • https://cdn.shopify.com/s/files/1/0438/5469/2512/files/doniden.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/asterix_and_obelix_xxl_2_trophy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/second_conditional_exercises_macmillan.pdf
    • https://cdn.shopify.com/s/files/1/0432/7741/8651/files/list_of_important_days_in_year.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/39852547930.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/bursary_appeal_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/wuxonebapumotaraxotubipe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067e9.bin
8ad1e2424361554cb2beee28569c808bceac9644fdeb8019d69dd77a024645be
pdf-font-stream PDF embedded font (sfnt) at offset 0x67E9 5164 bytes
font_01_sfnt_off00007986.bin
88cc3afb381d223e72dc91e74862c875fc82032575d211b237b8f2f9a6d7332b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7986 9900 bytes
font_02_sfnt_off00009b70.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B70 4324 bytes