Malicious PDF — malware analysis report

Static analysis result for SHA-256 59aab51a2668ac9a…

MALICIOUS

PDF

75.1 KB Created: 2020-08-09 21:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fee1a0c1d79985055c65c109149f23a2 SHA-1: 1d796a03fcdd3ceda7f154d6b21780062ee4fca0 SHA-256: 59aab51a2668ac9acf26be8387d3ce6e0bd5a764d11b29eb1f77f131001406b2
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is likely used to funnel victims to a phishing or malware distribution site. The document also contains a large number of embedded links, many hosted on Shopify, which is flagged as a PDF link farm. No scripts were extracted, but the presence of the malicious redirector is sufficient to indicate a malicious intent.

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=apache+cordova+documentation+pdf
    • http://files.northernnerd.com/uploads/1/3/1/3/131379680/wobifopedufinu_beruwedorelixif_kugepa_gakofus.pdf
    • http://files.clivechristianfellowship.org/uploads/1/3/1/1/131163559/34728.pdf
    • http://files.greenlotusdreams.com/uploads/1/3/1/8/131856636/bevoge.pdf
    • http://files.eulaandelbridge.com/uploads/1/3/2/7/132712282/gadavexiwenevukal.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/basicity_of_amines.pdf
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/rinesitupiwobej.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1487/files/green_day_american_idiot_songbook.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55742160690.pdf
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/bifejugowawe.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/favunubasaviwujekegu.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/kuludew.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1781/files/rugalawipebikunubajaso.pdf
    • https://cdn.shopify.com/s/files/1/0440/1666/4734/files/wipedamejasederukiwa.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a6f1.bin
43da22f8cbac0e639cf08fb9b5e6a63a2ff682064263ec1e71c79e68ae9cd330		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6F1 17396 bytes
font_01_sfnt_off0000ddf7.bin
b5015c6dc624f8d0fdb1fe5c8d5cf44f3059832b8766d2201703770629d19547		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF7 5232 bytes
font_02_sfnt_off0000efa6.bin
5a8f5834ccaf18e39b27aa4891a67ec755bd06c8eadc6e26721135577a348e3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA6 15368 bytes

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