Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb4c534e586e1b1a…

MALICIOUS

PDF

62.9 KB Created: 2020-08-31 00:17:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b57c319e5830c9105401492d11ea939e SHA-1: 957bb6fc6a2658426f4109be8d6f2819ca172215 SHA-256: bb4c534e586e1b1a64bf4b99d66b5127268bf9bc85511703b7226982fc07a787
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'house rent agreement format in chennai' and embeds multiple links. One critical heuristic indicates a malicious redirector link pointing to 'ttraff.cc', which is likely used to host further malicious content or phishing pages. The document also contains a large number of embedded links, many pointing to shopify.com, suggesting a link farm for SEO poisoning or to obscure the malicious redirector. No scripts were extracted from this sample.

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.cc/wix?keyword=house+rent+agreement+format+in+chennai
    • https://cdn.shopify.com/s/files/1/0431/7446/1594/files/english_b_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/best_answer_for_are_you_single.pdf
    • https://cdn.shopify.com/s/files/1/0431/4923/0237/files/relevant_codes_extent_report_for_selenium.pdf
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/tivego.pdf
    • https://cdn.shopify.com/s/files/1/0444/3671/7735/files/tevirizotiv.pdf
    • https://static.usrfiles.com/ugd/c0b427_e59e4b483eef4165a07a6a37c60aac50.pdf
    • https://static.usrfiles.com/ugd/7e6083_7f900a54b131435c98aa16dd8b0f79f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_66775c8e62984023ab82d7d576558559.pdf
    • https://static.usrfiles.com/ugd/7e6083_9578ac4b4c17426493a85dd8fac7df61.pdf
    • https://static.usrfiles.com/ugd/47b1e8_f09ec96641c84eaaa4010850b7c96837.pdf
    • https://cdn.shopify.com/s/files/1/0437/9590/6721/files/43193684435.pdf
    • https://cdn.shopify.com/s/files/1/0431/4310/2618/files/the_book_of_lies_aleister_crowley_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5715/1142/files/77323086036.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a177.bin
b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
pdf-font-stream PDF embedded font (sfnt) at offset 0xA177 2828 bytes
font_01_sfnt_off0000ab72.bin
e7eb6590d6474e633d472fedb3526a8c824b2d7ae0fd7ce165f4d13c11c24f64
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB72 5104 bytes
font_02_sfnt_off0000bca0.bin
e85d3807139d627ecc1a474f0df51b10a3bfa05edc79590c26933ebeadb6a340
pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA0 10288 bytes
font_03_sfnt_off0000dfc1.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC1 4324 bytes