Malicious PDF — malware analysis report

Static analysis result for SHA-256 724b5aebf0a4ed00…

MALICIOUS

PDF

38.1 KB Authoring application: ImageMagick
MD5: a3ef259187014ade557bf66f69452b41 SHA-1: 8ee3132af2a8d7fd933a03a9602d83c0435d7761 SHA-256: 724b5aebf0a4ed0000b526f905ef034de45873dd36fb5d09bea70c2752d6de49
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://ohinternet.net/uploads/1/3/0/6/130639849/8071892.pdf
    • http://amerineheatingandcooling.com/uploads/1/3/0/7/130740318/9476742.pdf
    • http://educationforsustainableliving.ca/uploads/1/3/0/7/130738859/5867433.pdf
    • http://fleabayers.com/uploads/1/3/0/7/130775513/kuvizom-dakoruxexom-radadoxuxudipud-besamu.pdf
    • http://tehditanaliz.com/uploads/1/3/0/6/130621895/30595171d6.pdf
    • http://instrumentsofexpression.net/uploads/1/3/0/6/130620142/zosepur-tufejokerax-guribavib-dojenexisaliran.pdf
    • http://macitsune.com/uploads/1/3/0/8/130874379/a0d89c0f7dd092.pdf
    • http://triumphbikerentals.com/uploads/1/3/0/2/130289347/fagewekadubajab_rizigiwumiref_zawujexefomales.pdf
    • http://beyondsky.ca/uploads/1/3/0/6/130604581/walofekozoz.pdf
    • http://www.lavidamia-miami.com/uploads/1/3/0/4/130436239/senosedofipus.pdf
    • http://eng.golnazbehrouznia.com/uploads/1/3/0/5/130550663/lulizifi.pdf
    • http://robertmcwhorter.com/uploads/1/3/0/5/130550951/jokozulozafadoxivi.pdf
    • http://pranzotruck.com/uploads/1/3/0/6/130621533/130621533.html#molde+alfabeto+maiusculo+e+minusculo+para+imprimir

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001359.bin
597f800c49e98e1f9a1d26ba7dd67e5ef9821ffda37d43dee0e29398aba23d85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1359 9624 bytes

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