Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd268db32488472…

MALICIOUS

PDF

32.4 KB Authoring application: OpenOffice Draw
MD5: 75aec482e5cabdb8883d24aec43e7746 SHA-1: 13e1f034058ff5aacacb149630f169c8d30d2416 SHA-256: 5cd268db32488472568dfb821c6df859da5be8cfbdcaaf3fac0d32afaf6d975f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a coordinated effort to manipulate search engine results or distribute malicious content. The ML classifier and ClamAV detection further support the malicious nature of this file. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://anotherchancrecovery.com/uploads/1/3/0/2/130289259/1011998.pdf
    • http://funelectron.com/uploads/1/3/0/5/130543816/2245022.pdf
    • http://grow.diannehatkecoaching.com/uploads/1/3/0/5/130588246/laroworenijujal.pdf
    • http://asopatia.org/uploads/1/3/0/4/130488749/1744488.pdf
    • http://lostpupper.club/uploads/1/3/0/2/130289613/4bd0e.pdf
    • http://mrsrenohasclass.com/uploads/1/3/0/7/130775029/fapobodawukitegej.pdf
    • http://goodwoodgolfclub.com/uploads/1/3/0/2/130271004/7cfad2ff46e764.pdf
    • http://loveyourchildren.org/uploads/1/3/0/5/130551991/lokaxaxapawuxe.pdf
    • http://ncahrmm.com/uploads/1/3/0/4/130492127/pifezebojovoka.pdf
    • http://michelsunlee.com/uploads/1/3/0/6/130639583/9370213.pdf
    • http://nelaalen.com/uploads/1/3/0/6/130639580/mabopitezibirekix.pdf
    • http://x0540936xstreamtravel.xsideas.com/uploads/1/3/0/5/130541103/130541103.html#nodejs+html-pdf+images

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002725.bin
257c680826034ccc6202dc37169979a555c51e71e135fa9baf4d0fc7170cebc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2725 8012 bytes

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