Malicious PDF — malware analysis report

Static analysis result for SHA-256 e298b09eda664b03…

MALICIOUS

PDF

51.8 KB Created: 2020-08-07 04:05:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53b140930e0dedc9eb5570f159b424dc SHA-1: 247a43a42794cd63857dcf75445489afeedc5bc1 SHA-256: e298b09eda664b034e1dfa44497dfe74d5d7ce402afc1f20eb355bbf61d66272
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text related to 'Terapia nutricional diabetes pdf' and the malicious URL. The presence of multiple external links, including a redirector, suggests an attempt to lure users to malicious sites. No scripts were extracted, limiting the analysis of direct payload execution.

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/wb?keyword=terapia%20nutricional%20diabetes%20pdf
    • http://files.rcuevasphotography.com/uploads/1/3/1/4/131406295/09d8c9b2077.pdf
    • http://files.laverocklawcottages.com/uploads/1/3/1/3/131383549/9100195.pdf
    • http://files.jonathaneickhorst.com/uploads/1/3/0/9/130969389/bimake.pdf
    • http://files.emmad-h.com/uploads/1/3/0/9/130969934/6203134.pdf
    • http://files.match-gems.com/uploads/1/3/0/9/130969243/waruxe-gibotusupuwe-viputefetapaj-walugogigebomev.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7535/files/66267094502.pdf
    • https://cdn.shopify.com/s/files/1/0437/8260/2913/files/bilinear_transformation_examples.pdf
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/96617390969.pdf
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/45000416845.pdf
    • https://cdn.shopify.com/s/files/1/0432/1555/2674/files/goofy_movie_eye_to_eye.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3835/files/business_process_management_jeston.pdf
    • https://cdn.shopify.com/s/files/1/0431/5611/1520/files/71388997899.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/42316452131.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdf
    • https://cdn.shopify.com/s/files/1/0431/8363/6644/files/sanyo_television_repair.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12035000993.pdf
    • https://cdn.shopify.com/s/files/1/0439/1115/1768/files/serebamepodavaferut.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/fobipaxu.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_off000089d1.bin
1af0073909cb538690142fd5286fb5807f284233898373583e12bbfa478a94b9
pdf-font-stream PDF embedded font (sfnt) at offset 0x89D1 5236 bytes
font_01_sfnt_off00009b9d.bin
2ce2df698e2f5170ef3aca2685dbb8ffb2661de2543ef87ab4f5582e5edb43a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B9D 11448 bytes