Malicious PDF — malware analysis report

Static analysis result for SHA-256 e96f5af3c9d6c425…

MALICIOUS

PDF

37.8 KB Created: 2020-04-09 11:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5b70e2edccbf47f3b60f0fc67e33f9d8 SHA-1: c4a9a1f2e1dd716db5841b2e39742eda4ef98cf7 SHA-256: e96f5af3c9d6c425836cdb3901ab95562d559f6a1371f525ad889e208b28fc39
62 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious websites. The document body mentions 'Bar's leaks 1111 head gasket fix', which appears to be a lure to attract clicks. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of a link farm, indicating a non-benign purpose. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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://andrewrc.com/uploads/1/3/0/6/130604342/130604342.html#bar%27s+leaks+1111+head+gasket+fix
    • http://macyfung.com/uploads/1/3/1/4/131453915/4254490.pdf
    • http://thenewchamber.com/uploads/1/3/0/5/130551486/fd8f2ac62a2a969.pdf
    • http://sweup.xyz/uploads/1/3/0/8/130873895/boralawe.pdf
    • http://qualitycleaningtoday.com/uploads/1/3/0/6/130620839/tuluwol.pdf
    • http://spareroompdx.com/uploads/1/3/0/5/130544754/fufur_gizisol.pdf
    • http://steelhorseconsulting.net/uploads/1/3/0/9/130969502/gosivosurilirepul.pdf
    • http://consultariapegasso.com/uploads/1/3/0/2/130272363/bugofakujawanidowul.pdf
    • http://sherryljohnson.com/uploads/1/3/0/5/130588857/jivubulav-nuxaritasifito-kigebena.pdf
    • http://boldabilities.net/uploads/1/3/0/5/130588288/1321674.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_off00006894.bin
426348cf2e465cfb00e2f215a8d83b170a3763f7f630fc85d937518fbb73a5e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6894 8872 bytes

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