Malicious PDF — malware analysis report

Static analysis result for SHA-256 57cae9a59d5a41a6…

MALICIOUS

PDF

40.8 KB Created: 2020-08-19 02:27:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b32179d7e97660444b71152ff5d45ba9 SHA-1: d00f06a781d78243fc5685cdc542c16dcbcbe094 SHA-256: 57cae9a59d5a41a6e51beb473b6534fe05e1d7faa9efa59b986627e5a26bfe35
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a 'Megger test report pdf'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=megger+test+report+pdf' which is flagged as a malicious redirector. Additionally, the PDF contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to distribute malicious content. The ML classifier also 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.cc/pify?keyword=megger+test+report+pdf
    • http://files.islandervillas.com/uploads/1/3/1/4/131453267/52159a579208a.pdf
    • http://files.whitehorsevenue.com/uploads/1/3/1/4/131407635/7844122.pdf
    • https://cdn.shopify.com/s/files/1/0453/2695/8747/files/95955155271.pdf
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/watoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/kobib.pdf
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/vomupowivofukikizuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/6527/8625/files/50521686672.pdf
    • https://cdn.shopify.com/s/files/1/0431/3094/5693/files/berewara.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/fuwovutof.pdf
    • https://cdn.shopify.com/s/files/1/0435/1030/0831/files/valvular_heart_disease_guidelines_2017_aha.pdf
    • https://cdn.shopify.com/s/files/1/0436/9213/0458/files/kakojuzutabatabik.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/26801361195.pdf
    • https://cdn.shopify.com/s/files/1/0432/1722/3840/files/65784168688.pdf
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/42765817408.pdf
    • https://cdn.shopify.com/s/files/1/0436/1909/0595/files/48258928443.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_off000062ee.bin
0f4670a7d0ab4dc778447264a71491cdbf270c42296dd4f8980fe04603fa3ada		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EE 4972 bytes
font_01_sfnt_off000073fb.bin
5eba97a5d220fe86a225d6b6b676f1789f7d645297432aef5b8343836408ca93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73FB 10108 bytes

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