Malicious PDF — malware analysis report

Static analysis result for SHA-256 8055f690f63a1477…

MALICIOUS

PDF

51.8 KB Authoring application: Serif PagePlus
MD5: 278a528c2696a41dd84aba0232b5bb8b SHA-1: 7fc2b17f6153e66223e212b18d92ea78c3871eb2 SHA-256: 8055f690f63a14776ef82d0f4c801ddefe37ef8a0476638b1e9ea127bbc040fc
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of a link farm with 31 external links, dominated by the host jerrylentini.com. No scripts were extracted from this sample, but the extensive link farm suggests a delivery mechanism for further malicious activity.

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://jerrylentini.com/uploads/1/3/0/3/130379311/daxibokepomum.pdf
    • http://practicalss.com/uploads/1/3/0/3/130312914/06225bff583d.pdf
    • http://athletesrecycle.com/uploads/1/3/0/4/130477278/baneraxizujuxuf.pdf
    • http://webmail.bradphelan.com/uploads/1/3/0/4/130483498/687425acab.pdf
    • http://amodernplace.com/uploads/1/3/0/7/130739363/rumesovuzovamobes.pdf
    • http://e-techbooks.com/uploads/1/3/0/7/130738845/xaguva.pdf
    • http://yenisiyasetkulturu.com/uploads/1/3/0/3/130323109/2f74e2341ca9cfa.pdf
    • http://playazball.com/uploads/1/3/0/4/130483295/vidubur_lutoxanonu.pdf
    • http://baobabtreestudio.net/uploads/1/3/0/3/130379082/nigorex.pdf
    • http://nourishmarket.ca/uploads/1/3/0/3/130323593/48ec966.pdf
    • http://starbagsptsd.com/uploads/1/3/0/6/130620345/2590767.pdf
    • http://collabranation.com/uploads/1/3/0/5/130590323/sariguzalozi-pesopewos.pdf
    • http://nothingtotriflewith.com/uploads/1/3/0/3/130379377/9823740.pdf
    • http://kotdobryak.site/uploads/1/3/0/7/130775402/natuwamididiv_xowupavub.pdf
    • http://recycledbags.net/uploads/1/3/0/4/130435716/kexeworeforesew.pdf
    • http://platinumpoolsandpatios.com/uploads/1/3/0/2/130289670/reretirogod-sivalivago.pdf
    • http://theyellowvanfurnitureco.com/uploads/1/3/0/5/130550868/7623550.pdf
    • http://massagejacksonvillefl.com/uploads/1/3/0/7/130775320/cf3d9fa94.pdf
    • http://connectumarriageministry.com/uploads/1/3/0/7/130740015/rurasubusazo-xejekilunazote.pdf
    • http://pennyband.com/uploads/1/3/0/6/130621542/284b861638.pdf
    • http://www.janelledmiller.com/uploads/1/3/0/5/130551630/limubedetawotafu.pdf
    • http://webdisk.bardosdiamondsports.com/uploads/1/3/0/3/130313027/130313027.html#tamponade+vs+tension+pneumothorax

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001000.bin
72380ac8d6859f6716cda3388984c1201f794f3e5ff32294efd05edd6f434b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1000 8732 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.