Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d6ab3281474d91…

MALICIOUS

PDF

35.6 KB Authoring application: OpenOffice.org
MD5: 0e0fdb1944ddc2d68ae0e28dc7342873 SHA-1: 788c68f858c41de567fcb8203b493c421161030e SHA-256: b3d6ab3281474d9177e06d545ef3163372a6e6b38686ea2e7da62bcbd542c85b
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily corrupted, contains text related to 'Hemolytic anemia in newborns', suggesting a potential lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mutinymugs.net/uploads/1/3/0/4/130483236/fb8145c42aa.pdf
    • http://ccevaluations.com/uploads/1/3/0/7/130775284/9bd030fc95877.pdf
    • http://e7neighbors.org/uploads/1/3/0/3/130323449/busuxijazaseduzexe.pdf
    • http://casarefugiopa.org/uploads/1/3/0/6/130621148/1592740.pdf
    • http://teach101.net/uploads/1/3/0/7/130776516/wazaxumufireg.pdf
    • http://futuresightbook.com/uploads/1/3/0/6/130603842/8783307.pdf
    • http://stemimpactawards.com/uploads/1/3/0/3/130379777/3b18157a7caa17f.pdf
    • http://niumanatreecare.com/uploads/1/3/0/7/130775125/zagirag-fomepowivogu-kofapamarow.pdf
    • http://pascoseo.com/uploads/1/3/0/5/130543653/ruzetoruv_zezaladopanimod.pdf
    • http://mail.opustorrens.org/uploads/1/3/0/8/130874161/bibekikuwimuve-volazikidaruvi-gusepatize.pdf
    • http://mybearbat.com/uploads/1/3/0/6/130604039/924f9afd.pdf
    • http://millerspowdercoating.com.au/uploads/1/3/0/7/130739579/13c583f.pdf
    • http://readoldhandwriting.com/uploads/1/3/0/2/130270796/2708858.pdf
    • http://richardsonplumb.com/uploads/1/3/0/2/130287943/wodujirevotasev.pdf
    • http://classroomsinthekitchen.com/uploads/1/3/0/6/130604803/2d6bd7739209.pdf
    • http://russlazaruk.com/uploads/1/3/0/6/130605393/dobolifiw.pdf
    • http://theoxfordhouseofbeauty.com/uploads/1/3/0/5/130588606/fawize-xafuvakekusafog-rodawapezib.pdf
    • http://quintepaddlingclub.com/uploads/1/3/0/2/130272432/2136810.pdf
    • http://host197.carmichaelnl.com/uploads/1/3/0/7/130739510/130739510.html#hemolytic+anemia+in+newborns

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f73.bin
37167232ec137096dbc630d39b597135973198b14432554b2017b854bd4d47ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F73 7236 bytes

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