Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c743e7ac8d1c983…

MALICIOUS

PDF

36.7 KB Authoring application: GIMP First seen: 2020-09-24
MD5: ee216f6bee88eaacf76abce9414b9287 SHA-1: b779e9bef390f6436159b1e72113886152d8e9ce SHA-256: 6c743e7ac8d1c9839f85777b10d68993e02ba7c10df0e3524146f5f68aac9261
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, many of which point to other PDF files. This behavior is indicative of a link farm or a phishing lure designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://remedyskitchen.com/uploads/1/3/0/5/130543985/zovadogerekevux.pdf In PDF document text
    • http://www.somethingsunnyonline.com/uploads/1/3/0/7/130740497/gagijux.pdfIn PDF document text
    • http://www.kendrickkirbylee.org/uploads/1/3/0/6/130604300/f86ec072825b.pdfIn PDF document text
    • http://clonmannoncarecentre.ie/uploads/1/3/0/8/130814120/729050.pdfIn PDF document text
    • http://www.asapbirthcertificates.com/uploads/1/3/0/2/130270956/9328748.pdfIn PDF document text
    • http://bfcxpress.org/uploads/1/3/0/7/130775725/pimaxo_lapedonom_lerelubu_genulefawiv.pdfIn PDF document text
    • http://bourki.com/uploads/1/3/0/6/130621030/6261362.pdfIn PDF document text
    • http://reconcileaustraliaparty.org/uploads/1/3/0/4/130483087/luwozajabogiji-zojedu-jufuziwizevifek.pdfIn PDF document text
    • http://www.aurin.be/uploads/1/3/0/6/130639862/bofibajavapimo_pofatum_datuka_tuvaxo.pdfIn PDF document text
    • http://sydneyft.com/uploads/1/3/0/3/130313306/jivanujugij_rixokuto_tuvogap_desupumosokusaj.pdfIn PDF document text
    • http://torreypinesgourmet.com/uploads/1/3/0/6/130605335/nozopijip-vagalo.pdfIn PDF document text
    • http://prescottdanceclub.com/uploads/1/3/0/4/130477085/aed347457.pdfIn PDF document text
    • http://trever-condo.net/uploads/1/3/0/4/130476462/wikodefegiro.pdfIn PDF document text
    • http://otstottdesign.com/uploads/1/3/0/6/130604077/dapavijetana_favufomagus.pdfIn PDF document text
    • http://www.copaveltd.co.uk/uploads/1/3/0/4/130435520/3273616.pdfIn PDF document text
    • http://didodey.vip/uploads/1/3/0/7/130739625/9462913.pdfIn PDF document text
    • http://peanutgalleryphotography14.com/uploads/1/3/0/2/130272548/130272548.html#icrc+international+humanitarian+law+a+comprehensive+introductionIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F4 8728 bytes
SHA-256: 7809a3827776318fe0e93bd79ed19523eb507966cba83385f8397f2f9d75c4b9