Malicious PDF — malware analysis report

Static analysis result for SHA-256 0991d442224692a6…

MALICIOUS

PDF

43.2 KB Authoring application: pdf-parser
MD5: 8867f45c365ff87aa15927bbe138712e SHA-1: 70c3789a0f636bdc6984d4996f30727134c00119 SHA-256: 0991d442224692a6b43ec0865580d01a92d34048c1d4beb4aab7df151af49890
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing 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. While no scripts were extracted, the sheer volume of external links suggests a coordinated effort to redirect users, potentially to phishing sites or malware downloaders.

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://nancyrancher.life/uploads/1/3/0/2/130271190/3c86c46d4c4.pdf
    • http://www.milwaukeecbdoil.com/uploads/1/3/0/6/130620972/4450139.pdf
    • http://cianjurpunyacerita.com/uploads/1/3/0/5/130588232/7643823.pdf
    • http://cadescovejunkies.com/uploads/1/3/0/7/130738657/bikusib-lotapovumit.pdf
    • http://sopoochtraining.com/uploads/1/3/0/2/130271111/gufijebegexil-wufojajere-posagevi.pdf
    • http://kodzie.com/uploads/1/3/0/5/130588508/efd0cc88209c44.pdf
    • http://myhralacarte.com/uploads/1/3/0/4/130483236/rozipadito-fibam.pdf
    • http://romelocaltourguides.com/uploads/1/3/0/5/130588548/mofugexi-rikutedavida-jurowexomulili.pdf
    • http://preapprovalcredit.com/uploads/1/3/0/5/130588438/zigenokubo-niwogumuvuzi.pdf
    • http://sazmode.com/uploads/1/3/0/5/130590482/c277e665b5ae2.pdf
    • http://impactbiomedical.com/uploads/1/3/0/6/130640235/woketidizanejekuw.pdf
    • http://molim.net/uploads/1/3/0/8/130873863/9384759.pdf
    • http://www.newageleadership.org/uploads/1/3/0/5/130588899/daxarosevajolej.pdf
    • http://balsamrootcatering.com/uploads/1/3/0/3/130323236/6486736.pdf
    • http://aogllc.org/uploads/1/3/0/2/130273576/a877a8f3.pdf
    • http://www.dogagilityplans.net/uploads/1/3/0/7/130775841/4532175.pdf
    • http://mta-sts.jfouellet.net/uploads/1/3/0/2/130288421/roloda-xafig-gazid.pdf
    • http://redneckridgeriders.com/uploads/1/3/0/7/130776162/venuxomufetapig-kuwiruk.pdf
    • http://logicaldesigner.net/uploads/1/3/0/5/130551264/fapikakute.pdf
    • http://adaptiveplanningconsultant.com/uploads/1/3/0/4/130477915/soxejezonemesupamari.pdf
    • http://patometry.com/uploads/1/3/0/5/130541424/e21eb158cd3a.pdf
    • http://peristeamhydrotherapyassoc.com/uploads/1/3/0/8/130874119/betonuf.pdf
    • http://girlscoutslosangeles.com/uploads/1/3/0/6/130639719/mexelefigona.pdf
    • http://newpublicnetwork.net/uploads/1/3/0/6/130621622/6809348.pdf
    • http://webmail.coprimag.com/uploads/1/3/0/4/130483300/130483300.html#adrenal+cortex+releases

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004696.bin
dfe0a04de751d989748731c83e17b4a2798c67c996ca56c49eda06c612e2fd70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4696 7684 bytes

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