Malicious PDF — malware analysis report

Static analysis result for SHA-256 c05b6276fdb8e82b…

MALICIOUS

PDF

46.6 KB Created: 2020-08-09 16:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be1c5cfa24d8e53d5bc6b4d59334144b SHA-1: 588ee16301bfb1f2a6c5950bb281ae92d5aa293d SHA-256: c05b6276fdb8e82b69869b119bcc698ef42a118ceefc2cad64793adbf7dbca41
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=peter+pan+e+wendy+pdf+italiano', is designed to redirect users to malicious content. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or distribution. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=peter+pan+e+wendy+pdf+italiano
    • http://files.impunity.site/uploads/1/3/2/6/132681204/lefopogi.pdf
    • http://files.mifolkschool.com/uploads/1/3/1/6/131606060/520140bdf.pdf
    • http://zasimi.steamworkskidslab.org/uploads/1/3/1/0/131070590/877ea3aa7.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/62908561827.pdf
    • https://cdn.shopify.com/s/files/1/0432/9229/5333/files/cascading_transistor_amplifier.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/pinodatet.pdf
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/book_of_lies_jw_hofstetter.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.pdf
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/82381026886.pdf
    • https://cdn.shopify.com/s/files/1/0434/1363/5226/files/the_thin_book_of_appreciative_inquiry.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/satafumelewon.pdf
    • https://cdn.shopify.com/s/files/1/0429/4888/6684/files/minecraft_op_factions_servers.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/12353099663.pdf
    • https://cdn.shopify.com/s/files/1/0437/7706/5121/files/gantala_panchangam_2016_to_2017_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9137/files/94534324895.pdf
    • https://cdn.shopify.com/s/files/1/0438/8667/4088/files/47875891877.pdf
    • https://cdn.shopify.com/s/files/1/0438/1255/2864/files/hampton_bay_landscape_lighting.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_off00007926.bin
af7db4074fefac8ae999e30e771015b5660f3ace3dbf01c7651fa38a57cde2a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7926 5052 bytes
font_01_sfnt_off00008a7b.bin
4b9a7223cec263b4d22f574bd35e7a4814dbf428817e2c9f63a1c377346c7e2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7B 10120 bytes