Malicious PDF — malware analysis report

Static analysis result for SHA-256 a724dd8fefae2e2f…

MALICIOUS

PDF

30.8 KB Authoring application: OpenOffice.org
MD5: b62dc88c0f968c059ef53e57fba2b7e4 SHA-1: bc24551ec5ff1fc8a2fe8dff60ced6e2c226ce32 SHA-256: a724dd8fefae2e2fc4dab3e519d22de772828c5f2f312450dfcf69be814c17aa
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to other PDF files hosted on various domains, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO abuse.

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://thecvap.org/uploads/1/3/0/2/130270963/rezufuvotonog_xalefuduki.pdf
    • http://leahwoods.net/uploads/1/3/0/6/130620857/roxubixonu.pdf
    • http://sandyridgebaptistchurch.org/uploads/1/3/0/6/130605432/b26038704721.pdf
    • http://mountainlifemontana.com/uploads/1/3/0/6/130604715/jamawi.pdf
    • http://milanchurch.com/uploads/1/3/0/5/130543568/4d1fdc97f12e4.pdf
    • http://theurbanclimatologist.com/uploads/1/3/0/6/130605012/4e87f262dbbdf.pdf
    • http://retojuanalainez.com/uploads/1/3/0/4/130436337/vosakanexux.pdf
    • http://amityschuyler.com/uploads/1/3/0/5/130589099/barox.pdf
    • http://cookedwithhart.com/uploads/1/3/0/7/130739935/3923533.pdf
    • http://celinesestevez.com/uploads/1/3/0/5/130588685/sofimukonud.pdf
    • http://lesetoiles-paris.com/uploads/1/3/0/5/130540592/5310623.pdf
    • http://dalesidea.com/uploads/1/3/0/2/130287548/lerivo_tavagufipimix_ranika_wugonaxo.pdf
    • http://northernvalleysportinggoods.com/uploads/1/3/0/4/130476309/negufimewe.pdf
    • http://qutasa.com/uploads/1/3/0/4/130489763/bujetodeg.pdf
    • http://oachristchurch.org/uploads/1/3/0/6/130604321/47bebbeb2df717.pdf
    • http://beclaims.com/uploads/1/3/0/4/130489564/gojejolizejis-jonamofarusip-pizexokugigon.pdf
    • http://worldofelevators.net/uploads/1/3/0/3/130313150/vokiboruf_situtevabitivo.pdf
    • http://74-123-73-116.mgwnet.com/uploads/1/3/0/3/130379193/130379193.html#algebra+2+solving+absolute+value+equations+and+inequalities
    • http://74-123-73-116.mgwnet.com/up

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001c99.bin
ddb5794952334287abd683159420c3af9eadf5b5ff8c020b9f09024ce457073e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C99 7284 bytes

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