Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d78c114cd775d3…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 08:13:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 453dbafc94b8927ee0e5df425a737721 SHA-1: 9a50f44804126fd9ff0883984ce480b350787706 SHA-256: d1d78c114cd775d303e6708e14f7398ab34ae0b00d99b6e6d79274259244931d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a primary link to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious content. The file is identified as a PDF with embedded links, aligning with common phishing and redirection tactics.

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=economy+efficiency+and+effectiveness+pdf
    • http://bawube.jadepublishing.org/uploads/1/3/0/8/130814328/2474696.pdf
    • http://files.lymphomatolemonade.com/uploads/1/3/1/4/131452952/vudifebuwagikobobon.pdf
    • http://files.ranger-stories.com/uploads/1/3/2/7/132740533/vewufabilakopu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6623/files/20849178974.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0736/files/79618281955.pdf
    • https://cdn.shopify.com/s/files/1/0430/7487/9641/files/powinikowisutozop.pdf
    • https://cdn.shopify.com/s/files/1/0434/5423/4785/files/horizontal_asymptotes.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/92105199531.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/45854605738.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/59828467640.pdf
    • https://cdn.shopify.com/s/files/1/0429/3830/2627/files/mabezu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/16332667792.pdf
    • https://cdn.shopify.com/s/files/1/0429/5596/4569/files/40128233150.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_off00005f8a.bin
a101aae2ff2e300bfe1f393ebbe3c9a65cacef37abf4ed37360b62b125c5fb27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8A 5292 bytes
font_01_sfnt_off00007196.bin
2d272abfea771835fec9850eca781c36783985fe60b02aeba7c74dd762ae4eb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7196 10592 bytes

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