Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a1c3bbba888f378…

MALICIOUS

PDF

95.4 KB Created: 2020-08-18 17:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a33cbbf1800cd4e27aa7625bddbf1e59 SHA-1: 5ea7c696a8a6aa2b81391856b230f04b3b53d7c1 SHA-256: 7a1c3bbba888f378285fb009eec3d41e08c53f6132cf73da08ac8541b9e3edda
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=spider+man+ps4++time'. This URL is presented within the document body, suggesting a lure to trick users into visiting a malicious site. The PDF also exhibits characteristics of a link farm, with numerous external links, further supporting the malicious intent. The ML classifier strongly flagged this PDF as malicious.

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=spider+man+ps4++time
    • http://files.hinxworthandedworthvillagehall.org.uk/uploads/1/3/1/8/131856191/7920216.pdf
    • https://cdn.shopify.com/s/files/1/0432/8180/9566/files/79875672403.pdf
    • https://cdn.shopify.com/s/files/1/0434/3765/4178/files/47493115221.pdf
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/55322536588.pdf
    • https://cdn.shopify.com/s/files/1/0428/6421/4175/files/css_gradient_background.pdf
    • https://cdn.shopify.com/s/files/1/0437/2617/6407/files/puda_building_bye_laws_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/android_studio_mini_project_with_source_code.pdf
    • https://cdn.shopify.com/s/files/1/0428/1827/3446/files/93703559809.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/distinguish_between_language_acquisition_and_language_learning.pdf
    • https://cdn.shopify.com/s/files/1/0432/8046/6080/files/75120269293.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/10626244277.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10699911966.pdf
    • https://cdn.shopify.com/s/files/1/0435/5165/4047/files/35877809506.pdf
    • https://cdn.shopify.com/s/files/1/0434/8595/4198/files/kamilir.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_off00012043.bin
1ef64b3a137a58bf239133279f58c2ed752f578347b90d10e5bdabd5a4c9a9b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12043 4944 bytes
font_01_sfnt_off000130e9.bin
af9ee0d7fb6cf1937283ae05a1956227cb8efa01e64185774e4bd72d85357d50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130E9 15996 bytes
font_02_sfnt_off00016265.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16265 4324 bytes

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