Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ef13e1d99b3347…

MALICIOUS

PDF

123.4 KB Created: 2020-08-12 18:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9cbf087e53327b748ee3c594c29ae8b2 SHA-1: c003a7120a899efab83d0e58cc46b1f21e26eb04 SHA-256: e1ef13e1d99b334715b5d10809be1b5bd67220f842c79caf9c1de3118690304e
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic identified a link to a known malicious redirector infrastructure at https://ttraff.ru/pify. The document body, though heavily obfuscated, contains a reference to this URL, suggesting the primary intent is to redirect the user to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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.ru/pify?keyword=the+ultimate+rpg+character+backstory+guide+pdf+tg%252F
    • http://dititirep.suffolktrainstation.com/uploads/1/3/1/0/131070786/1232788.pdf
    • http://files.gatorrughookinggroup.com/uploads/1/3/0/7/130739910/zebevodoju.pdf
    • http://files.safetygradelicensure.org/uploads/1/3/1/6/131606758/7542717.pdf
    • http://files.mrlum.com/uploads/1/3/0/7/130775596/3461966.pdf
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/pravana_chromasilk_color_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/7153/7301/files/pdf_ke_word_online_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/tavaropuxokot.pdf
    • https://cdn.shopify.com/s/files/1/0434/2513/6797/files/4773943125.pdf
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/bumunezavirirexigos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/40809151175.pdf
    • https://cdn.shopify.com/s/files/1/0440/9255/5416/files/rolutuxima.pdf
    • https://cdn.shopify.com/s/files/1/0435/5578/2817/files/vagunexi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/xugofozozowepe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/jofutuzetotaxeledaze.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_off000193de.bin
5817a0261914d9df31bb081ec9b9156d673e4fc017ddb1002653bab4a1f32ee4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x193DE 3524 bytes
font_01_sfnt_off0001a07c.bin
ff42750104399e40ccf9403aac06dd6baa76dba9423cc15504336a08351d8d4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A07C 5860 bytes
font_02_sfnt_off0001b44e.bin
9297db6bf0db3a10ec217fe9255bf723074629254edfc8a3b9eaaf18321922d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B44E 13928 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.