Malicious PDF — malware analysis report

Static analysis result for SHA-256 37f783e6156c2a8f…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 08:24:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5966f5a8e014560c3610aefce6068cdc SHA-1: 7c7282e7eaab9d185deb1557270996a60f46da8f SHA-256: 37f783e6156c2a8fa24ca9d1961c317390de558d061ccbd4fe328025e55b85d7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The primary heuristic indicates that the PDF links to malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=catalogo+esselunga+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware delivery, under the guise of a catalog. No scripts were extracted from this sample.

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=catalogo+esselunga+pdf
    • http://files.glamgoddess.shop/uploads/1/3/1/4/131483491/fazubuxijozuzexep.pdf
    • http://files.alannastephens.com/uploads/1/3/0/7/130740130/5793759.pdf
    • http://files.carolcgould.com/uploads/1/3/0/8/130873914/pefovumuduw.pdf
    • https://cdn.shopify.com/s/files/1/0431/4673/9866/files/62842046056.pdf
    • https://cdn.shopify.com/s/files/1/0431/3566/4284/files/quality_assurance_definition.pdf
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/3400738387.pdf
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/pejoniduxalesazuvi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2014/files/eduardo_galeano_books.pdf
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/wisaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/1504/4245/files/sejotexu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0902/2886/files/50073096128.pdf
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/rozezojo.pdf
    • https://cdn.shopify.com/s/files/1/0436/6457/2569/files/nodame_cantabile_drama.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/82767885512.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_off000069fc.bin
cfabf6782c7cf2e8c659e7cc64394251a23960076e7339690d95b7ce892946f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x69FC 5020 bytes
font_01_sfnt_off00007b27.bin
1ab561db0006cd12c98ace29fd8523a4337bdd8029321fb4d4099de4ecdd8fbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B27 11520 bytes