Malicious PDF — malware analysis report

Static analysis result for SHA-256 374917194f896290…

MALICIOUS

PDF

39.4 KB Created: 2020-04-24 21:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b859fa474dc237d501c8c8270131649c SHA-1: 1b323426bc62662181b3f569f89513f1c4633036 SHA-256: 374917194f896290903921ef315b6b7b8b2499783958d225a627bdedf5102976
102 Risk Score

Malware Insights

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

The PDF contains a link farm of numerous external PDFs, likely intended to manipulate search engine rankings or to serve as a distribution point for malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely instructs the user to open a password-protected archive, a common tactic to bypass initial security scans. The embedded URLs point to various PDF files hosted on different domains, suggesting a broad distribution or redirection infrastructure.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://myequineeducation.com/uploads/1/3/1/3/131379381/131379381.html#io.+appium.+java_client.+appiumdriver+jar
    • http://rockforuspresident.com/uploads/1/3/0/6/130604730/7643512.pdf
    • http://thehandsomegeek.com/uploads/1/3/0/2/130287463/fefoduf_nesizalotogin.pdf
    • http://eacmb.org/uploads/1/3/1/3/131379726/4796534.pdf
    • http://thelittleflower-lincoln.org/uploads/1/3/0/4/130489830/vupamamuzujurab.pdf
    • http://migrantliteraturejournal.com/uploads/1/3/0/7/130776035/56887cffd78.pdf
    • http://sarah-adamson.com/uploads/1/3/0/6/130621460/mudinewin-sefizezera-dipipe.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071aa.bin
baea84347b26092d052f298e115651d49087aca5765b719168c636edcf0db880		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71AA 8320 bytes

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