Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8edee5bb12538bf…

MALICIOUS

PDF

38.1 KB Authoring application: Karbon First seen: 2020-09-24
MD5: 9deb4b40c08bc94c058ea2c107e77f22 SHA-1: c9ba9a25be57487f34c5d80a24cef4d530c030da SHA-256: d8edee5bb12538bfe744ae2f5ba4da1249f000fb140e4eee15171ef305938f9c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a mass link farm pointing to other PDF files, disguised as an aptitude test with answers. This is a common lure for phishing or malware distribution. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious intent. The embedded URLs are likely used to host or redirect to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://wmsportsreport.com/uploads/1/3/0/7/130776083/fukofatowitap.pdf In PDF document text
    • http://www.lymeliteclothing.com/uploads/1/3/0/7/130775758/b332c.pdfIn PDF document text
    • http://myptsdveteran.com/uploads/1/3/0/2/130273623/9b4f9.pdfIn PDF document text
    • http://www.toptiertechla.com/uploads/1/3/0/6/130639683/9f7f99.pdfIn PDF document text
    • http://livingyogawithsally.com/uploads/1/3/0/6/130621020/resusuxopewagit.pdfIn PDF document text
    • http://tsacosmetics.com/uploads/1/3/0/6/130639668/vazuji.pdfIn PDF document text
    • http://whistleblowerrecovery.com/uploads/1/3/0/6/130639889/kezorirozeku-niboto.pdfIn PDF document text
    • http://www.alexisbrock.com/uploads/1/3/0/2/130272070/govaliziw-mapuzudibofuku-beputufe-lupavupalokojan.pdfIn PDF document text
    • http://madronaband.com/uploads/1/3/0/3/130313218/79ffe4c70efc.pdfIn PDF document text
    • http://burgyoungpublishing.com/uploads/1/3/0/4/130488213/guvejavoput-nimuzudamofezix-wevuzalo-lonolowaxas.pdfIn PDF document text
    • http://dtailspetboutiquespa.com/uploads/1/3/0/6/130639983/1005308.pdfIn PDF document text
    • http://www.mayahairstonslampoetry.com/uploads/1/3/0/7/130738550/80c7d.pdfIn PDF document text
    • http://arabshortfilmfactory.com/uploads/1/3/0/5/130551876/bifazinamobad_lujolafa_tezevunide.pdfIn PDF document text
    • http://sincerelykera.com/uploads/1/3/0/7/130775231/4064891.pdfIn PDF document text
    • http://www.rycatering.com/uploads/1/3/0/2/130272606/nelinemewol.pdfIn PDF document text
    • http://mentorconcrete.com/uploads/1/3/0/7/130776314/2b63f8cb4fe.pdfIn PDF document text
    • http://katrinanathaller.com/uploads/1/3/0/7/130776738/f8e740dc856988.pdfIn PDF document text
    • http://weigaonano.com/uploads/1/3/0/8/130813546/34cc56796763.pdfIn PDF document text
    • http://jacob-senior.daniellerosephotography.com/uploads/1/3/0/7/130776016/kenaruzirorus.pdfIn PDF document text
    • http://livingthelifefantastic.org/uploads/1/3/0/4/130436033/8007507.pdfIn PDF document text
    • http://www.beathawellness.com/uploads/1/3/0/6/130620826/c140e8665dc8aa.pdfIn PDF document text
    • http://www.mohawkcollegepathfinder.com/uploads/1/3/0/6/130640175/xonifikadeku.pdfIn PDF document text
    • http://www.shaunandbelle.co.uk/uploads/1/3/0/5/130545784/wemapotudidir.pdfIn PDF document text
    • http://wlanspots.de/uploads/1/3/0/5/130550949/nupetaletuvoja-xenezefisir.pdfIn PDF document text
    • http://seetheworldtravel.voyagerwebsites.com/uploads/1/3/0/7/130738913/130738913.html#aptitude+test+pdf+with+answers+downloadIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D5 7992 bytes
SHA-256: b5fa2a3ee0529d600c0182aa9e4f7c071f4ef1f2c48f0feb2b1485c666459896

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