Malicious PDF — malware analysis report

Static analysis result for SHA-256 19e6ed00704667af…

MALICIOUS

PDF

34.5 KB Created: 2020-08-22 22:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ffa8964e131f351d61dacd93046970d SHA-1: 4856a79caf4a6061adf1ac2f72047dec96d0b82e SHA-256: 19e6ed00704667af36755ca7ca35bfb0c20b98ab561e8b894db896c1c794dfc1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to deliver further payloads. The document body, though partially corrupted, suggests a lure related to 'solstices and equinoxes worksheet'. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, many pointing to Shopify, which is a common tactic for SEO poisoning and distributing malicious documents. The primary attack vector appears to be tricking the user into clicking the malicious link.

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=solstices+and+equinoxes+worksheet
    • http://files.mymodernsolutions.ca/uploads/1/3/2/6/132681362/runadutalitepij.pdf
    • http://wukepev.arshaikh.com/uploads/1/3/1/6/131607240/zizuwejajeradopolu.pdf
    • http://files.southamboyfirstaid.com/uploads/1/3/1/4/131408537/9821308.pdf
    • https://cdn.shopify.com/s/files/1/0431/1682/2679/files/latikuxokulenepolarurijo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3314/0127/files/lerimubaxebeni.pdf
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/shadowrun_hong_kong_etiquette.pdf
    • https://cdn.shopify.com/s/files/1/0449/7784/8488/files/air_pollution_causes_effects_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1417/files/cielo_led_tv_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/2057/3082/files/79209129402.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/wisipe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6372/9557/files/sobep.pdf
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/govaxilo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/adhesion_in_dentistry.pdf
    • https://cdn.shopify.com/s/files/1/0434/0681/9477/files/tobunomivafaruwomefexamo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7498/4863/files/36005727006.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_off000047c8.bin
a6be0395aa3c1dbbefed4947ee9e4ec8c2d14d2faec1d2e2a912b49e13850013		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47C8 5480 bytes
font_01_sfnt_off00005a69.bin
ce5e9cc19db84d80c7a7577af1b5d1777866f9c4bf779cb764feb82f68db08a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A69 10188 bytes

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