Malicious PDF — malware analysis report

Static analysis result for SHA-256 772e79d8632f33ec…

MALICIOUS

PDF

36.7 KB Created: 2020-08-20 13:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dd98e014922ac59b62d30ad87c6584f SHA-1: ef8534c57e9386db60ae594c7c8e9eed053c6018 SHA-256: 772e79d8632f33ec41c8d2c47ddbbb4fc27d26c455cb475baa31558100d7ed66
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.ru/pify?keyword=awana+theme+song+piano+sheet+music', is flagged as a malicious redirector. The presence of a link farm and a malicious redirector suggests the document's primary purpose is to lure users to potentially harmful websites.

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.ru/pify?keyword=awana+theme+song+piano+sheet+music
    • http://bukor.freerangechooks.com.au/uploads/1/3/1/1/131163729/karivosejodutiti.pdf
    • http://tadawe.webaggedit.com/uploads/1/3/0/7/130775374/4158838.pdf
    • http://zusasibu.demesstainedglass.com/uploads/1/3/2/8/132814930/tafivibenazib_riroxizes_saxit_pijebofukirezep.pdf
    • http://bopetu.boulevardmarket.com/uploads/1/3/0/8/130814328/natizuxolovobituraje.pdf
    • http://nomuxu.guitarhympia.com/uploads/1/3/2/6/132682646/lefijitejegidan.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1217/files/colorlib_templates_wordpress.pdf
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/suduxalide.pdf
    • https://cdn.shopify.com/s/files/1/0437/3620/3415/files/32126468897.pdf
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/gupetik.pdf
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/38550658536.pdf
    • https://cdn.shopify.com/s/files/1/0432/2453/1101/files/ergonomics_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/larokadujamebajabuvenero.pdf
    • https://cdn.shopify.com/s/files/1/0431/2317/9677/files/xigikunototidibaginos.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/botoputorexoseb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/netgear_dsl_gateway_model_7550.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/zubelatabofuwi.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_off00004f54.bin
32e1ffee2f42b968c7af44894f0c52cb2793ea67ed8e7edc6392e5223de0fabc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F54 5300 bytes
font_01_sfnt_off00006149.bin
7fb718bbf83be6c6699645b1733f1b7dd37a6bf745312b98c80f617d33d44fc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6149 10692 bytes

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