Malicious PDF — malware analysis report

Static analysis result for SHA-256 19e96d3fd64b6de0…

MALICIOUS

PDF

33.0 KB Created: 2020-08-16 00:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 024ae310e5fa5515277af619f1972456 SHA-1: 077e909894a00334c3b83b1bb10f20fc031d1c97 SHA-256: 19e96d3fd64b6de0f0c531141ddb62e5237c230c9a0df8ab1acc857573cc6e97
150 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links redirects to a known malicious domain (ttraff.ru), indicating a phishing or malware distribution attempt. The document body contains garbled text along with the malicious URL, suggesting it is designed to lure users into clicking the link under the guise of accessing academic material.

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/wb?keyword=an%20introduction%20to%20social%20psychology%20kuppuswamy%20pdf
    • http://files.goucherstudentartshowcase.com/uploads/1/3/0/7/130775506/tonobikujazina_wurem.pdf
    • http://files.dixonwebsitedesigns.com/uploads/1/3/0/9/130969573/9076819.pdf
    • https://cdn.shopify.com/s/files/1/0438/5007/2214/files/zuvegirasanujebokov.pdf
    • https://cdn.shopify.com/s/files/1/0432/3924/3931/files/gosuvejitopepenuwen.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/24100832125.pdf
    • https://cdn.shopify.com/s/files/1/0438/9755/3064/files/fatotatudujakos.pdf
    • https://cdn.shopify.com/s/files/1/0435/9903/6579/files/auditora_de_sistemas.pdf
    • https://cdn.shopify.com/s/files/1/0435/1878/7736/files/ielts_academic_reading_test_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/8191/4781/files/atypical_pneumonia_in_pediatrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/xekowebi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/basic_daily_english_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9284441163.pdf?v=1594212706
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/38242082308.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9150/files/waragadagafidejakabojedor.pdf
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/peluxunanijumudesixemadam.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_off00004244.bin
af7e93e4b19d5d2f7e862cf4f4af77a6b52ae887b3eb89e524c1ecbf15a761b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4244 5816 bytes
font_01_sfnt_off000055fc.bin
391e70312717123686e2624d9cb6ef3d79b9ab747bc5ee5392bc20c5c133b0c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55FC 9608 bytes

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