Malicious PDF — malware analysis report

Static analysis result for SHA-256 3976de218f822a94…

MALICIOUS

PDF

36.8 KB Authoring application: LibreOffice Draw
MD5: 5d5f6e30eaaf7ed1e00d1f1048a0e12c SHA-1: ca022cf0d7494a330153f12d317b11c2f20b7fae SHA-256: 3976de218f822a944d9c2324b6e9f621654bd0c6be271acdd4b1e7ff2a50e817
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm, often used to drive traffic or distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. 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.
  • 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://andreanelsonart.com/uploads/1/3/0/6/130621654/2945126.pdf
    • http://amberbellemusic.us/uploads/1/3/0/6/130639180/juwetokotobudifod.pdf
    • https://puxotimav.weebly.com/uploads/1/3/0/4/130476661/83c6c1fe.pdf
    • https://dofufosetari.weebly.com/uploads/1/3/0/4/130436337/vemupavogapo.pdf
    • http://chrysalisholistics.com/uploads/1/3/0/4/130488331/eff2c266ca91cb.pdf
    • http://littlegreenbee.net/uploads/1/3/0/4/130483903/disivugun_dawivetis_radepakajuligi_riziwu.pdf
    • http://norcal-cre.com/uploads/1/3/0/5/130539053/ef7e71c414e6cc6.pdf
    • http://sustainableob.com/uploads/1/3/0/3/130379844/3656065.pdf
    • http://qiessence.net/uploads/1/3/0/6/130621915/2932956.pdf
    • http://thesoftearth.com/uploads/1/3/0/5/130539357/5437072431558a5.pdf
    • http://xiruv.evanstonfcu.com/uploads/2020/01/28/tusumipajuz-girara-wawotexatovedev.pdf
    • http://webdesignbycarole.com/uploads/1/3/0/5/130589160/tuzidexulogire.pdf
    • http://djsacademy.com/uploads/1/3/0/6/130620522/130620522.html#angularjs+documentation+pdf+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001398.bin
ff1e0b1fc070bf300a7fd136116c48011576d0335fd43709abd39db740fc4fda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1398 8644 bytes

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