Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9403a6197d3824e…

MALICIOUS

PDF

47.2 KB Authoring application: ImageMagick
MD5: f7287960bbde6ae3271d246b88e81b10 SHA-1: 68c869cfe3516e30e60156df075516439e49d939 SHA-256: e9403a6197d3824ed8d80a235f48f88c1fc69644759efdbccb5cf3935ebe57df
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to other PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier also strongly indicate maliciousness. No scripts were extracted from this sample, limiting the ability to determine specific execution behaviors.

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://constructioninsurance.net/uploads/1/3/0/5/130590777/mukabetozibil_jajor.pdf
    • http://elliottgoldberg.com/uploads/1/3/0/6/130640003/9596150.pdf
    • http://madisonelisabeth.com/uploads/1/3/0/5/130589244/matoju.pdf
    • http://acclaimfoods.com/uploads/1/3/0/4/130488885/1853675.pdf
    • http://ncbestsigns.com/uploads/1/3/0/2/130289519/futivibewenivus.pdf
    • http://mysteretro.com/uploads/1/3/0/4/130476541/6c93b.pdf
    • http://creditfromhome.com/uploads/1/3/0/5/130551362/3073403.pdf
    • http://nourishandthriveforlife.com/uploads/1/3/0/5/130539885/tekozula.pdf
    • http://jstepp.net/uploads/1/3/0/3/130323100/06241f13d2390.pdf
    • http://arcanathegame.com/uploads/1/3/0/7/130776519/8298324.pdf
    • http://spwhoa.com/uploads/1/3/0/8/130813630/8788410.pdf
    • http://ssh2019.info/uploads/1/3/0/6/130604907/wewurisaritodibuloru.pdf
    • http://troybuyshousesindiana.com/uploads/1/3/0/5/130588574/xebomo.pdf
    • http://harvestoforegon.com/uploads/1/3/0/6/130640003/xijaliputopefur.pdf
    • http://refinishedcabinets.com/uploads/1/3/0/2/130272083/tekogulenizalot-dazatekoke-rirukijik-ropiwago.pdf
    • http://lmi7fs.salon225.com/uploads/1/3/0/6/130603810/130603810.html#affairscloud+current+affairs+monthly+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c16.bin
d92d4b025a6ef050c4a8d00f7b24f7003db89026d466dfcd39ad81bd8f069896		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C16 8892 bytes

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