Malicious PDF — malware analysis report

Static analysis result for SHA-256 750ed87b9a31809f…

MALICIOUS

PDF

69.8 KB Authoring application: Inkscape
MD5: 740751822039958708de5023bc0b39af SHA-1: 859ea8dad0d7f4efbc79df686e49890ac8e0c57b SHA-256: 750ed87b9a31809fa5f0a1f8666f97dfb05a5220c79b84d8176d6b845b0c76c6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files across various domains, a technique often used for SEO spam or to distribute malicious content. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and a critical heuristic detected a PDF link farm. The document body contains garbled text, suggesting it's not intended for direct user interaction but rather as a container for the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jtagtutorial.org/uploads/1/3/0/3/130379864/migarasivav-guzezuremo-xixuzakeretone.pdf
    • http://lean4teensllc.com/uploads/1/3/0/2/130287371/abdf0.pdf
    • http://kaydumedia.com/uploads/1/3/0/7/130740186/nonoz_jorirabi_kijagam.pdf
    • http://bandonplayhouse.com/uploads/1/3/0/6/130603969/limiroxakumo_maneze.pdf
    • http://teachyourclassvideo.com/uploads/1/3/0/6/130639334/puweziratipomog_julugomexosaneb_rovonopuve_fumam.pdf
    • http://inshopper.site/uploads/1/3/0/7/130775558/484c9441a4.pdf
    • http://nickhawrylko.com/uploads/1/3/0/6/130604777/betoretepebanu.pdf
    • http://centraworks.org/uploads/1/3/0/2/130291492/7985034.pdf
    • http://briansnider.org/uploads/1/3/0/6/130621248/1e6242c9b6e2402.pdf
    • http://newbornumc.org/uploads/1/3/0/7/130738933/biwegududapuzusi.pdf
    • http://insightsrhythm.com/uploads/1/3/0/8/130873930/kofubeparudiriv.pdf
    • http://stazkoassociates.com/uploads/1/3/0/3/130379492/vakabalulepaduzux.pdf
    • http://msgaccounting.com/uploads/1/3/0/7/130776541/2b3060022b.pdf
    • http://www.juicebarhealthbeauty.org/uploads/1/3/0/3/130312983/tozube_kinezekadomuw_resedovigiriju.pdf
    • http://www.ashevillehighchoirs.com/uploads/1/3/0/5/130539074/kamulofevifusedijopa.pdf
    • http://coloradooverlandexpo.com/uploads/1/3/0/4/130491356/bakovop-muxipapalemekab-golaneg-burevabuduwe.pdf
    • http://nubiangoatskentucky.com/uploads/1/3/0/5/130538840/554146.pdf
    • http://artbyamandadouglas.com/uploads/1/3/0/2/130271209/pofugewejuwo.pdf
    • http://blucoffee.ph/uploads/1/3/0/6/130621225/fenoxatomuwikejanosa.pdf
    • http://host.creativedatainc.com/uploads/1/3/0/6/130604192/130604192.html#cirrhosis+of+the+liver+ascites+prognosis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002469.bin
ee396208ec6121e676a16f51f28ffb52c99917dcf77c4885e4e5e7d6a02e8707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2469 9760 bytes

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