Malicious PDF — malware analysis report

Static analysis result for SHA-256 713976dd1062a64c…

MALICIOUS

PDF

30.8 KB Authoring application: Solid Converter PDF
MD5: e36bde2ae1127b21ae872145c708382d SHA-1: 02182b017e12d5bc8a82cea66089b80a27f5d7c5 SHA-256: 713976dd1062a64cd3f17107fb64bb73983a1bd00d00a21b1c9f4c77db8046ca
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection purpose. The ML classifier also strongly indicated maliciousness.

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://shifnalbc.co.uk/uploads/1/3/0/4/130489969/lozid.pdf
    • http://almansweide.nl/uploads/1/3/0/7/130739789/xaposewosemize.pdf
    • http://www.ryandilloncounseling.com/uploads/1/3/0/8/130813059/4215514.pdf
    • http://comkiapp.com/uploads/1/3/0/5/130590478/bf33cc57b3.pdf
    • http://timetotalkart.com/uploads/1/3/0/9/130969850/welokejo_vezegagoboran_zatupegumobane.pdf
    • http://dependablelawncareservices.com/uploads/1/3/0/6/130639025/wariferapawam.pdf
    • http://cpanel.warnergaragedoor.com/uploads/1/3/0/5/130589214/34cbe422a3e.pdf
    • http://urbanarmorapparel.com/uploads/1/3/0/4/130479435/puxufebedanubixokuna.pdf
    • http://roanepublishing.com/uploads/1/3/0/5/130539305/6e5776fd45b7c.pdf
    • http://mx.circusparkmedicalvillage.org/uploads/1/3/0/5/130550844/nufezijomijul-tubodigow-fijinowonafow-povejigaxolema.pdf
    • http://chloeskidmore.com/uploads/1/3/0/6/130604140/81545.pdf
    • http://interestology.com/uploads/1/3/0/8/130874018/dononuvaseg_tutuxujavokan_zubatifoloru_nepumepo.pdf
    • http://hm3cbd.org/uploads/1/3/0/7/130775334/titizabixufe-jetilovome-fusubaja-rilonofaja.pdf
    • http://fldocprepinc.com/uploads/1/3/0/4/130488169/febevilinilep.pdf
    • http://suburbanescape.net/uploads/1/3/0/5/130546392/130546392.html#chiller+trane+manual+rtac

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001f2e.bin
ffaabc36562cf3f1f301b312fb37c92fbdc36b6e252ff716fe482b4bf0a9677d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F2E 7464 bytes

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