Malicious PDF — malware analysis report

Static analysis result for SHA-256 54d23e1782f1714b…

MALICIOUS

PDF

41.5 KB Created: 2020-08-03 03:22:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49c4be56d23b9b6f48e5e60e6f3c7945 SHA-1: 580bee92482268d7adc63e0ed75e8b9e3821c07b SHA-256: 54d23e1782f1714b323d5dd71a3c2e67d0cf1b7ec581c7ccbe502aad2061fbe9
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a thermostat manual, but it redirects to a known malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=white+rodgers+thermostat+manual+1f80-+261. The document body is heavily obfuscated, but the embedded link and heuristic firings strongly indicate a phishing or redirection attack.

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=white+rodgers+thermostat+manual+1f80-+261
    • http://files.danceofthemagi.com/uploads/1/3/0/7/130739288/vodabepo.pdf
    • http://files.eidolonmedia.com/uploads/1/3/1/4/131452922/2596668.pdf
    • http://files.coastalphotoclub.com/uploads/1/3/0/8/130874246/9644377.pdf
    • http://files.calvary-christianschool.com/uploads/1/3/0/9/130969474/0086e2615ab62f.pdf
    • https://cdn.shopify.com/s/files/1/0433/4639/5304/files/50364527288.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/26975128277.pdf
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/88283285830.pdf
    • https://cdn.shopify.com/s/files/1/0432/8207/1716/files/37070158676.pdf
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/21083055683.pdf
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/xaguxukitobomiwo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/23876411856.pdf
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/pinoy_tambayan_123.pdf
    • https://cdn.shopify.com/s/files/1/0440/3625/9990/files/90545388559.pdf
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/masubefomibibakowigumelu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/jivarobeg.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_off0000611f.bin
13d8c39310f81773447b3d289d84c8553581585eeff9b762ed70d756f8021ecb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x611F 6040 bytes
font_01_sfnt_off0000759b.bin
3bc99fbd118d8d5f51005d5a3c1086d8e864b9dbac97ef50f613dbd2f35f7175		 pdf-font-stream PDF embedded font (sfnt) at offset 0x759B 10332 bytes

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