Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2fd3ea85ca2042e…

MALICIOUS

PDF

40.6 KB Created: 2020-08-20 12:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02a64e5a514b31baa3244a33eca7a6f8 SHA-1: 6dec584e0fabb14429a4f7f8c0fd5dbba93b752f SHA-256: d2fd3ea85ca2042e186ec7ece10a805f3c633d4307e71c2661a1c04295996c09
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=breast+cancer+screening+guidelines+singapore'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, also contains the same redirector URL. This suggests the primary intent is to redirect the user to malicious infrastructure.

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=breast+cancer+screening+guidelines+singapore
    • http://files.mirroryourbrilliance.com/uploads/1/3/1/3/131379277/6054111.pdf
    • http://gazitoxek.richfeenstra.com/uploads/1/3/1/4/131454215/soxewedulu_xunoromurato.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/udp_tracker._coppersurfer._tk_6969.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0428/1620/9059/files/lewexinifidepedosa.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/acceptor_and_rejector_circuit.pdf
    • https://cdn.shopify.com/s/files/1/0436/0847/3763/files/boundary_layer_separation_nptel.pdf
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/65946232623.pdf
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/8111181874.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/disuxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/tunajovobepavewimegepevil.pdf
    • https://cdn.shopify.com/s/files/1/0436/5985/3977/files/wpf_celleditingtemplate_itemssource.pdf
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/fipufagorijotifopatebovar.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_off000060c7.bin
5821ffd010ba215230861c11326765d28f117245cda157667b58b3c346fe63ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C7 5292 bytes
font_01_sfnt_off000072c9.bin
408a562a84343c49e3dcb653b8a40c9191288d91787f33bb56f62a5e4b884e38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C9 10180 bytes

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