Malicious PDF — malware analysis report

Static analysis result for SHA-256 388ac5513a99e2a1…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 22:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4306f6804fb2defcc94b95705853da6c SHA-1: b1b15e7cd6ee44df43f4c72df518d33013fc5966 SHA-256: 388ac5513a99e2a1243e77e838f100e13986ba449d462ecb5034f97228ff3bfa
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM indicates the presence of numerous external links, with the primary malicious link being to 'ttraff.ru'. The document body contains obfuscated text but prominently features the malicious URL and several other URLs hosted on cdn.shopify.com, some of which are confirmed benign. The overall pattern suggests a phishing or redirection attempt.

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.ru/pify?keyword=microplasticos+secundarios+pdf
    • http://files.gracedesignedjewelry.com/uploads/1/3/0/9/130969310/nemusuwa.pdf
    • http://files.alsupmusic.com/uploads/1/3/2/7/132740339/336999.pdf
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/epidemiologa_analtica.pdf
    • https://cdn.shopify.com/s/files/1/0436/7322/3321/files/que_es_el_control_de_calidad_total.pdf
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/bodyboss_nutrition_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/6663/0037/files/14304875115.pdf
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/vazatuvi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3533/6605/files/44854133077.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/trasplante_haploidentico_de_medula_osea.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/37792215245.pdf
    • https://cdn.shopify.com/s/files/1/0443/6430/0444/files/the_cellist_of_sarajevo_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/6436/8021/files/vizio_sound_bar_remote_code.pdf
    • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/99281324594.pdf
    • https://cdn.shopify.com/s/files/1/0438/8762/4344/files/90017515423.pdf
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/vegebamemike.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_off000068f2.bin
fcc17aaef3a3beaf66490d9d0ac5f18bef25cb201fe3e4d97496e006de262aa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68F2 5156 bytes
font_01_sfnt_off00007a81.bin
6bde77e439ce161bd41ca798c69b0b76dc5fb34062d3d5a86f04f1d902accf5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A81 10160 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.