Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70ff01915c2afb6…

MALICIOUS

PDF

44.3 KB Created: 2020-08-11 04:41:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94633861872f1318714022e3f85d9290 SHA-1: f8aadff1fff01395c534d42ae68558a1697fd4a4 SHA-256: e70ff01915c2afb630be83de5ff9135b1620e71f82362640503187ef5492685c
120 Risk Score

Malware Insights

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

The PDF file contains a link farm with 17 external PDF links, designed to redirect users to malicious infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=sab+gomez+de+avellaneda+pdf. This indicates a social engineering attack aimed at luring users to malicious content. 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/pify?keyword=sab+gomez+de+avellaneda+pdf
    • http://files.loganfamilycenter.org/uploads/1/3/1/0/131070591/06a81a9d789b7.pdf
    • http://files.inhistrenches.com/uploads/1/3/1/1/131163788/0b5ee74.pdf
    • http://toxop.keya-tshirt.com/uploads/1/3/1/4/131454065/bamubuzomawa.pdf
    • http://files.newukmusicals.co.uk/uploads/1/3/1/0/131070089/879af657.pdf
    • http://sanagulak.sccoprivatepracticeclub.com/uploads/1/3/0/9/130968984/901061.pdf
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/gekume.pdf
    • https://cdn.shopify.com/s/files/1/0436/6001/7814/files/31878169045.pdf
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/75794499823.pdf
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/67200053116.pdf
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/26073544915.pdf
    • https://cdn.shopify.com/s/files/1/0437/1575/6181/files/subnautica_lifepod_2.pdf
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/kamepopuburawutajazig.pdf
    • https://cdn.shopify.com/s/files/1/0432/8387/3942/files/79656160706.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/poisson_probability_examples_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/52102015076.pdf
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/remebowa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31670740491.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_off00006bc6.bin
8612f4dd8db4e7e251311209ddbc0ad3ddd7c51438b802745dee7140daf20d00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC6 5440 bytes
font_01_sfnt_off00007e4d.bin
1906349a137bbee9a31db1b109d4660e2685d8fd6cde5c6e35bb2605f5b5e2e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4D 11204 bytes

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