Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e89f38aa65a1389…

MALICIOUS

PDF

39.7 KB Authoring application: Inkscape
MD5: ccad704ab52b8f54e626f610b9d32a83 SHA-1: 4d8144590f25054ae1e2fd11a1d2b5289cbb87b4 SHA-256: 5e89f38aa65a13895f4979dc301e4da4496d64618fb7d2bbdc142e8f1d302d00
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall'. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of compromise and suggest a phishing or content distribution attack.

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://www.sitarevoyance.com/uploads/1/3/0/6/130620222/67185e663.pdf
    • http://onesimplyiris.com/uploads/1/3/0/6/130621063/1939123.pdf
    • http://paramountss.com/uploads/1/3/0/6/130605325/7e7f23b6ce81096.pdf
    • http://nightbluesystems.net/uploads/1/3/0/5/130546977/57c10a6.pdf
    • http://helenabperryfinancial.com/uploads/1/3/0/2/130289339/nukik.pdf
    • http://mollyvstreiff.com/uploads/1/3/0/2/130289700/4dc61f3fc08a6.pdf
    • http://mymassagehub.com/uploads/1/3/0/6/130605017/e285f5b0db91.pdf
    • http://hostmaster.parkandbrew.com/uploads/1/3/0/4/130436139/1123132.pdf
    • http://unitedaustin.com/uploads/1/3/0/7/130775680/869110f47d7c29.pdf
    • http://eventshutter.com/uploads/1/3/0/5/130540504/fofovisuke-tideziti-gudigixa.pdf
    • http://www.rhillportraits.com/uploads/1/3/0/2/130270792/d6bd7a41f.pdf
    • http://octobermemories.com/uploads/1/3/0/5/130551271/0e9fbe6067c508d.pdf
    • http://msvetnaportfolio.com/uploads/1/3/0/6/130620367/losozuvo.pdf
    • http://masterbrands.net/uploads/1/3/0/7/130739723/tewojekedemuso.pdf
    • http://ns1.wvtu.org/uploads/1/3/0/4/130435649/539170.pdf
    • http://www.magic-nails.studio/uploads/1/3/0/8/130813818/vomepagam_jeriverimajuju.pdf
    • http://pccpnetwork.nhs.uk/uploads/1/3/0/8/130814187/fugijelu-razojusiwufut-murexojipadib-tumilabax.pdf
    • http://therightofway.org/uploads/1/3/0/6/130621178/7702579.pdf
    • http://mustangterritorywriters.com/uploads/1/3/0/2/130270974/9c617.pdf
    • http://commongroundsphilly.com/uploads/1/3/0/7/130739982/kotilibisuw.pdf
    • http://liberty-rc.com/uploads/1/3/0/4/130483125/rinuvuriwobano_gijakasanopa_pafogifetage_nanawigun.pdf
    • http://www.mullentesting.eu/uploads/1/3/0/6/130604369/7272194.pdf
    • http://mipiacitu-polgio.com/uploads/1/3/0/4/130476712/senezekijurob-pebasawigusazub-popogesoser.pdf
    • http://7mcn4.slpny.com/uploads/1/3/0/4/130436222/temilu.pdf
    • http://www.janinehartley.com.au/uploads/1/3/0/3/130323445/130323445.html#file+pdf+tidak+bisa+dibuka+di+hp+android

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000368f.bin
8fb11ef591dc67befb4c473b3eb57a60915c97e1dfc65bd11695dc7e03ecc242		 pdf-font-stream PDF embedded font (sfnt) at offset 0x368F 8256 bytes

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