Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e13a80118e10b0b…

MALICIOUS

PDF

36.6 KB Authoring application: OpenOffice.org
MD5: c1fe303ca68a9a7ed74708480c184b36 SHA-1: fc7039e3a5d0372ea62db53b596ecd3d0dcac3e8 SHA-256: 9e13a80118e10b0b95347f4d687622aaffde9344752793f05a31fb601617b445
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm designed for SEO. This suggests a phishing or redirection campaign. The ClamAV detection and ML classifier further support its malicious nature. 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://ncmetalbuildingsdirect.com/uploads/1/3/0/5/130588433/domoxaxitoroju_wabonusut_kigenavefipepef_pizetebew.pdf
    • http://jzia.com/uploads/1/3/0/5/130544591/bepetunug_xonofisexodu_fovibupamana_fenaneba.pdf
    • http://lifestylewidget.com/uploads/1/3/0/6/130639355/7f66dcd.pdf
    • http://pum.millioninvestor.pw/uploads/2020/01/28/xizetu.pdf
    • http://purirabi.vipiski-besplatno64.icu/uploads/2020/01/29/kofapozi_bigojaf.pdf
    • http://spice-grind.com/uploads/1/3/0/6/130605344/8861306.pdf
    • http://icebergholdings.com/uploads/1/3/0/6/130620574/feledop-bemim.pdf
    • http://demitrydevelopment.com/uploads/1/3/0/3/130313235/c570756653.pdf
    • http://thefilmpunks.org/uploads/1/3/0/7/130739120/af425.pdf
    • http://wam.woltag.com/uploads/2020/01/28/1803105.pdf
    • http://welcomeneighborftsmith.com/uploads/1/3/0/5/130539016/dd5bb9.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/5/130590325/130590325.html#active+voice+vs+passive+voice+grammar

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012f8.bin
877ca1096368da0bf509de509457afc3d521fab19c5c2236a0c6e93d64573b62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F8 7932 bytes

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