Malicious PDF — malware analysis report

Static analysis result for SHA-256 d92d978a53f33a41…

MALICIOUS

PDF

52.0 KB Created: 2020-08-04 23:28:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a09126f6babc8b3228b7be9552458b6 SHA-1: ea56fadee4a1b6af5c65cfb2b8895a5a52e15af3 SHA-256: d92d978a53f33a411ea43646059c8600ffaf31cc80b280c54e6584f78a93f4c6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body text, though partially corrupted, includes the phrase "Holland code careers pdf" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful destination.

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=holland+code+careers+pdf
    • http://files.yogaweave.com/uploads/1/3/0/7/130775429/pudadewuxago.pdf
    • http://files.marineservicecorps.net/uploads/1/3/1/6/131607029/69c2d55.pdf
    • http://files.sharmilainc.com/uploads/1/3/1/6/131606396/zezizuma-megaj-xedikalif-xereno.pdf
    • http://files.drtyroneholmes.com/uploads/1/3/2/6/132682039/5044734.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/xudopakobiduj.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/stay_by_rihanna_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0435/8366/8392/files/loxuposugolir.pdf
    • https://cdn.shopify.com/s/files/1/0431/8062/1985/files/40664183819.pdf
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/72142692043.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/personal_development_module.pdf
    • https://cdn.shopify.com/s/files/1/0437/0356/6486/files/xexubojo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/firegebosegug.pdf
    • https://cdn.shopify.com/s/files/1/0435/6875/8943/files/jizawive.pdf
    • https://cdn.shopify.com/s/files/1/0433/4695/2351/files/taxix.pdf
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/peterirogatanetifozekasug.pdf
    • https://cdn.shopify.com/s/files/1/0432/0546/0125/files/lean_to_shed_plans_free_12x24.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_off00008c7d.bin
ad5fa52aaafb8b38e69bd46400ef040225e21ec1dd213b76239849aa7bdb935c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7D 5112 bytes
font_01_sfnt_off00009ded.bin
95e5c76cabe0019689369b75cf3f450f853123b36f5c74d0e568361094752de6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DED 11252 bytes

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