Malicious PDF — malware analysis report

Static analysis result for SHA-256 9866ef15288713bc…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 22:20:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 941077fcb8a8e8e8a4b63cb0898538de SHA-1: 41d5ad1e08f254a3bc9e8b0ec063ae85162fa3bb SHA-256: 9866ef15288713bcab13b5039cadcc724a9aabc55003d524947443c730efd141
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=informatieplicht+energiebesparing+activiteitenbesluit, which is likely used to deliver a secondary payload or phish for credentials. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify, suggesting a coordinated effort to distribute malicious content.

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=informatieplicht+energiebesparing+activiteitenbesluit
    • http://files.oregonfmc.org/uploads/1/3/0/7/130739143/narulokujiv_supozutinona.pdf
    • http://files.harmonychorale.org/uploads/1/3/1/6/131606563/3172315.pdf
    • http://files.marinamaxwellauthor.com/uploads/1/3/0/7/130776855/perivavojivaw.pdf
    • http://files.sdaspay.com/uploads/1/3/2/6/132681823/9497638.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4557/files/41591582807.pdf
    • https://cdn.shopify.com/s/files/1/0437/6422/0055/files/gabisanoxogowunululaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/dovetogovim.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/jopifirezomemitoziwaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8113/8343/files/wow_iron_ore_farming_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/xefomavarabikuva.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/95567936882.pdf
    • https://cdn.shopify.com/s/files/1/0447/1272/2585/files/2020_world_cup_bracket.pdf
    • https://cdn.shopify.com/s/files/1/0432/1817/4120/files/75500899322.pdf
    • https://cdn.shopify.com/s/files/1/0435/5024/5028/files/felomasujuzowoxokugesagi.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_off000061cb.bin
3b4614f7cd7c185dd9347f802c30de145ae6b1736507d0b2cc8957a0665aa1ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61CB 5568 bytes
font_01_sfnt_off00007487.bin
e8b7b791393bcd1250040bb015668afc4fb713d11946a3ea27e4d5201e60b29a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7487 9960 bytes

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