Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b8c2616e8032c56…

MALICIOUS

PDF

44.0 KB Created: 2020-08-08 15:48:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 447486ea00ac5a2691d2de599125ec3e SHA-1: 0e6cc187b423f832cd403b052b6a92b5e8f2d9d8 SHA-256: 9b8c2616e8032c56cc5da307df1198296ab48dd74ef23e90625a164d8a156678
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=equidad+de+genero+laboral+pdf', is directly linked to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to the topic 'Equidad de genero laboral pdf' and lists multiple Shopify URLs, likely part of a link farm to obscure the malicious redirector.

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=equidad+de+genero+laboral+pdf
    • http://files.resenviecon.org/uploads/1/3/2/7/132712050/kabut-xumodofiluduf.pdf
    • http://files.milantownship.org/uploads/1/3/0/8/130874683/kafug.pdf
    • http://files.tlwselfpublishingcompany.com/uploads/1/3/1/3/131379054/jozamulabejisiv_kelojudiposoti.pdf
    • https://cdn.shopify.com/s/files/1/0440/6312/9765/files/hp_photosmart_d110_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/500_basic_english_words.pdf
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/70413811638.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/sagegoborus.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0770/3201/files/general_mathematics_10th_class_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/srimad_devi_bhagavatam_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/anti_money_laundering_act.pdf
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/files/ruviwiwomilu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/hyundai_golf_cart.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6119/files/callate_y_besame_zara_black_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/residential_load_calculation_manual_j.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/jelefop.pdf
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/kojujezas.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_off00006ab4.bin
de108d2a86cb8b06cf34a933e862a460a5b5941fdd88c06e2cb29ccf8452c45e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB4 5252 bytes
font_01_sfnt_off00007c99.bin
97e9acf3c5cfd20e982c30532f7ef108e75b702bcdfdc54659eba35071760514
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C99 11292 bytes