Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6e211899c8f4673…

MALICIOUS

PDF

52.3 KB Created: 2020-08-22 22:12:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7acaf44bb1aa4d2d7c6fde5edd450d1a SHA-1: f7de01ceb52f2102087ec98d2cf962befd3c5c5c SHA-256: e6e211899c8f467355a201b37e59fed85e5228d8059d3c050e3070c457c7d788
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to URLs that are likely part of a link farm designed to manipulate search engine results or distribute malicious content. The primary attack pattern involves luring users through these links, potentially leading to phishing or malware downloads.

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=barmer+patrika+today+pdf
    • http://files.rhbc29130.org/uploads/1/3/0/8/130874324/2868891b00fd.pdf
    • http://makinewex.kettlecornnc.com/uploads/1/3/1/4/131438641/jopoxubejaleg-golofiza-fapagigega-juwidowe.pdf
    • http://pesevib.wonderfull.blog/uploads/1/3/1/3/131398125/piwotinake.pdf
    • http://nirinigod.ourcolourfulworld.com/uploads/1/3/1/4/131407355/7dfe9993e2aad.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/beliwox.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56697352128.pdf
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/kolemisupesajafaziwevo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/what_country_code_is_33.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/31764878842.pdf
    • https://cdn.shopify.com/s/files/1/0447/8205/9671/files/tubumesumofirikabesin.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/autodesk_autocad_for_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/8469/4175/files/53665058326.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/gomevebaga.pdf
    • https://cdn.shopify.com/s/files/1/0429/3600/8870/files/mogelasegepiguku.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0822/files/51792411557.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000623d.bin
da813ff0d0135d37a95209117eccb039afcb04b566b1f4a03c8978b58959cea7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x623D 5192 bytes
font_01_sfnt_off000073e2.bin
6808bf6719e26aa46646a2e640f6fd0030c4ded44ece7401203453df312a2be9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73E2 14948 bytes
font_02_sfnt_off0000a272.bin
2620633e28babe18d48f34f6ff63fd70fe70a9fff75ae586892fdc99c7691655		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA272 9896 bytes

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