Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffaf0d6cbbe61386…

MALICIOUS

PDF

46.7 KB Created: 2020-08-14 23:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d55d79011462c7c1a6b7e8b9a6f79e4 SHA-1: 808879952b5d73f002203c449c72291b30fad747 SHA-256: ffaf0d6cbbe613869956f1fe826c9a18bdfd6e77d6482aaea8108316edb3399a
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to benign Shopify URLs, but a critical heuristic identified a link to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious redirector URL. This suggests the PDF is designed to act as a link farm, with the primary malicious intent being to redirect users to the `ttraff.cc` domain.

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=sqlite+android+studio+image
    • http://files.danielsphoto.net/uploads/1/3/2/7/132710748/vupuliluravi-xuzolesoju.pdf
    • http://files.imprintmarketing.com/uploads/1/3/1/8/131856257/9188607.pdf
    • https://cdn.shopify.com/s/files/1/0448/0460/4066/files/sony_dhg-_hdd_250.pdf
    • https://cdn.shopify.com/s/files/1/0429/8683/2035/files/samouczek_angielski_dla_pocztkujcych.pdf
    • https://cdn.shopify.com/s/files/1/0429/5521/0905/files/bootstrap_center_image.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/99182495268.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdf
    • https://cdn.shopify.com/s/files/1/0433/7926/1590/files/school_absence_request_form_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/6647/4139/files/90041179480.pdf
    • https://cdn.shopify.com/s/files/1/0435/7583/6840/files/61513557959.pdf
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/receptive_bilingualism.pdf
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/livip.pdf
    • https://cdn.shopify.com/s/files/1/0431/1053/1238/files/27127159149.pdf
    • https://cdn.shopify.com/s/files/1/0437/5920/6558/files/ps_i_love_you_jenny_han.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_off000076b8.bin
9adbca863f9738083b29c7f990cacfeee5c0b92fdaa73e6ece5a8ea7262afc32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B8 5376 bytes
font_01_sfnt_off000088d3.bin
ab6aeb6ebeec2149ee1a2f1604a669b82cc062a20161b47b63467b1dad1988a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88D3 11068 bytes

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