Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c37a0c7a6428828…

MALICIOUS

PDF

42.6 KB Created: 2020-08-03 23:52:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b344e6a3fd48370730ce7df5b2bf1484 SHA-1: e8fb488f4811853eaa4c82e5d292dcc32ef1c180 SHA-256: 3c37a0c7a64288280927bf4a7c599aacf28198955ae4ebae6d40aa5cb50658a0
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=boulevard+of+broken+dreams+partition+piano+pdf', which is designed to lead users to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL is a high-confidence indicator of malicious intent, likely for phishing or malware distribution.

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.com/pify?keyword=boulevard+of+broken+dreams+partition+piano+pdf
    • http://files.trainshoppeslc.com/uploads/1/3/2/6/132696500/pozefipivujoj-dizesarow-kiforemimesuxuk.pdf
    • http://files.busenerpro.com/uploads/1/3/1/8/131856476/7778920.pdf
    • http://files.valleyliberator.com/uploads/1/3/1/6/131606035/padavosagog.pdf
    • http://files.oceanviewchristian.com/uploads/1/3/0/7/130739621/634471.pdf
    • http://desovapig.storiasia.com/uploads/1/3/1/4/131453062/3734910.pdf
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/pugobiposikodilo.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/mefifusekix.pdf
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/wiwonovafomot.pdf
    • https://cdn.shopify.com/s/files/1/0429/5321/2057/files/99085494665.pdf
    • https://cdn.shopify.com/s/files/1/0428/5913/5132/files/woximevepanukiwifudexukap.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/kowapoketifemumasudosiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/5719/2853/files/blender_merge_vertices.pdf
    • https://cdn.shopify.com/s/files/1/0434/2785/6536/files/nunelemumudulezaxodoku.pdf
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/45988122124.pdf
    • https://cdn.shopify.com/s/files/1/0441/1323/2024/files/serial_ccleaner_professional_edition.pdf
    • https://cdn.shopify.com/s/files/1/0441/2522/5112/files/17099107090.pdf
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/xojateda.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_off00005cf3.bin
847803e7f402576785db08d9dd3f1adc96728aad5704973a70fd5b3510294c14
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF3 5500 bytes
font_01_sfnt_off00006f9a.bin
7e5f1aad55f57ed30efdf494d7afbf1d6e9404fc031703e8a5437e1e41cf1489
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9A 14784 bytes