Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad1f6b8d4b10a5d2…

MALICIOUS

PDF

56.7 KB Created: 2020-08-14 13:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 462fd300fd73ce5c9e31c3ec92fff6c3 SHA-1: 8159ade6ba54dcc320b10a81dddf397c7497e159 SHA-256: ad1f6b8d4b10a5d2ae8f946913ad7bf4655057a9688d04f354affa72b896f083
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is also present in the document body. This indicates a lure to a malicious site, likely for phishing or malware delivery. The presence of a 'SE_INVOICE_LURE' heuristic further supports the attack pattern of using fake payment notifications to trick users. The document also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute malicious content.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=payment+by+proforma
    • http://files.malibusocceracademy.com/uploads/1/3/1/4/131438190/8055812.pdf
    • http://veguk.skylineelectricalmn.com/uploads/1/3/0/9/130969742/rakalezavakug.pdf
    • http://files.journeythroughlifeministries.net/uploads/1/3/0/7/130739154/piwef.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/lista_de_adverbios_de_modo_en_ingles_y_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0428/5480/9756/files/59184871905.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/mimafefaxaxege.pdf
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/80340204313.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0209/files/brocas_de_perforacion.pdf
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/indexing_and_abstracting_in_library_science.pdf
    • https://cdn.shopify.com/s/files/1/0429/5000/0796/files/23484954254.pdf
    • https://cdn.shopify.com/s/files/1/0435/5696/2467/files/catecismo_iglesia_catolica_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/effects_of_unsafe_abortion.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8286/files/fozavatul.pdf
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/list_of_feelings_and_emotions_with_definitions.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_off00007318.bin
59d761c63affa4b4cb00a30e0c7adfe29a0b668c016a6b86376c4c8d6cd7f51f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7318 5080 bytes
font_01_sfnt_off00008448.bin
191eb265df90279f8be9a7f1cd418723ad3d16563c1b471fe784bf3a02613b2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8448 10852 bytes
font_02_sfnt_off0000a194.bin
fadde4bf8f7610ddf24f06993284aeef18b4f126da0c89ff89d5b6ed8ceaf6de
pdf-font-stream PDF embedded font (sfnt) at offset 0xA194 17984 bytes