Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb41fda4fef24456…

MALICIOUS

PDF

102.4 KB Authoring application: Soda PDF
MD5: 1b8dc95e36d2a06ad6fef3e5c6d3c1d9 SHA-1: 41532e0515c9c686e7c870370a21f8f2c202e984 SHA-256: bb41fda4fef24456578e9af1354d4ad8aeafd44b15ce6cda493e7d24cc896ad2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing and traffic redirection. No scripts were extracted, but the sheer volume of links suggests a coordinated effort to drive traffic to potentially compromised or malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://uncleguidocito.com/uploads/1/3/0/7/130775056/vunamuvafa.pdf
    • http://nohokaiproductions.com/uploads/1/3/0/5/130588878/c14353f364b0501.pdf
    • http://www.salussouthernhighlands.com/uploads/1/3/0/7/130776695/xenomokona.pdf
    • http://aseemsice.com/uploads/1/3/0/8/130874277/5dc629c869c9.pdf
    • http://starlite.tech/uploads/1/3/0/5/130588403/9247220.pdf
    • http://sharonthelibrarian.com/uploads/1/3/0/6/130620454/4957867.pdf
    • http://www.sixtradeshomeimprovement.com/uploads/1/3/0/4/130483565/c116a03d.pdf
    • http://emilyyy.com/uploads/1/3/0/2/130287529/mofoxo_zenegisotowe_wadedasagima.pdf
    • http://privacyprerogative.com/uploads/1/3/0/4/130476180/24a9d40eb43671f.pdf
    • http://slotruth.org/uploads/1/3/0/6/130603891/24de5.pdf
    • http://cleverchange.org/uploads/1/3/0/7/130776642/rilizizuzo_mexalu_pifunuperek_zarizotagam.pdf
    • http://shopconsidertheravens.com/uploads/1/3/0/6/130639997/duzitaxoxilemumo.pdf
    • http://agavepress.com/uploads/1/3/0/6/130639849/32d8310.pdf
    • http://brightpropertyfund.com/uploads/1/3/0/7/130738680/5808919.pdf
    • http://edenrosepapery.com/uploads/1/3/0/7/130775012/cd9ed6d9.pdf
    • http://chapmanfarrellgroup.com/uploads/1/3/0/6/130603905/28b5fbe15306b23.pdf
    • http://www.thehuskymamma.com/uploads/1/3/0/6/130620451/jirule_vatibufuwol_duzipidumex.pdf
    • http://mykedixon.com/uploads/1/3/0/7/130739688/ketuxoze_somora.pdf
    • http://nickskitchendalycity.com/uploads/1/3/0/8/130814575/93488c948b0f239.pdf
    • http://artfromaveganheart.com/uploads/1/3/0/6/130639673/wizivirevafedi-xukugerobeteru-gubafekokofo.pdf
    • http://nourishsinglemoms.org/uploads/1/3/0/5/130588681/8061123.pdf
    • http://www.kristinerinartistry.com/uploads/1/3/0/6/130620619/d6c91c6348692d4.pdf
    • http://icleanup.net/uploads/1/3/0/2/130289319/19652574c14246f.pdf
    • http://t4wv7h7ofiun.dogsworldwalking.com/uploads/1/3/0/8/130874676/3860198.pdf
    • http://michaelroberto.net/uploads/1/3/0/7/130776755/matajemetofabuwuw.pdf
    • http://jke.brdge.org/uploads/1/3/0/6/130639393/130639393.html#historical+development+of+science+and+technology+in+the+philippines+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001949.bin
282b110c2f92b027c96822e30fd1c4df00e140df2b516d45a93e69d86e3b0342		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1949 9784 bytes

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