Malicious PDF — malware analysis report

Static analysis result for SHA-256 47bdcdaef715e855…

MALICIOUS

PDF

46.1 KB Authoring application: Solid Converter PDF
MD5: a65df7bcbc9168a5a747cb02ed614f2a SHA-1: 3880c7e6390821e3e3c5edfc37a34908c3e6691a SHA-256: 47bdcdaef715e8551b20956d80c9931449b0b6f78c19596ed603c1ab2da9cb6a
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified as a link farm, pointing to various external PDF files. This technique is commonly used to distribute phishing content or redirect users to malicious sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. 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://freeyourmonkey.com/uploads/1/3/0/2/130270783/fasixorusib_wativi_felokade.pdf
    • http://nflar.club/uploads/1/3/0/6/130621032/ninomivoredigajix.pdf
    • http://miomondo.com.au/uploads/1/3/0/2/130288729/784467.pdf
    • https://wapudiwu.weebly.com/uploads/1/3/0/3/130379231/6096990.pdf
    • http://angelavinson.com/uploads/1/3/0/4/130477085/besobirede.pdf
    • http://my-trg.com/uploads/1/3/0/5/130542863/57a3d854.pdf
    • http://natalieelizabethseipert.com/uploads/1/3/0/4/130494871/taxilavejasojawabub.pdf
    • http://marketyourselfsmarter.com/uploads/1/3/0/6/130620657/wasexemowasiru.pdf
    • http://nodoubthomeinspection.com/uploads/1/3/0/6/130604406/1684479.pdf
    • http://camelcottage.com/uploads/1/3/0/4/130483416/dexafofobepex-vokekexemik-veroparabulaf-sisawufekawipe.pdf
    • http://myentouragemusic.com/uploads/1/3/0/6/130604523/130604523.html#acceptance+test+plan+document

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012e0.bin
bfae4e7d83ccd3c2444efe48b099dd9365da8ef80d41bf940ecf95aa64c0ad2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E0 8796 bytes

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