Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ef11a999c23b04b…

MALICIOUS

PDF

70.5 KB Authoring application: Scribus
MD5: 0a24f39dc947f24acb2bb43e79665cb5 SHA-1: 75e1d95d723f3f62842245f5f7a9c654be37ca06 SHA-256: 1ef11a999c23b04b653d0d134af8765a61412a343a920df528e22063e8336d42
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly support its malicious nature. No scripts were extracted from this sample.

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://deadeyestudios.co/uploads/1/3/0/2/130288416/7d0160ab2903e.pdf
    • http://culturaleducation.online/uploads/1/3/0/8/130874352/2819082.pdf
    • http://elektrotickets.com/uploads/1/3/0/5/130588847/gelubeganize.pdf
    • http://ameliaquilts.com/uploads/1/3/0/5/130543848/bejotumijaforosib.pdf
    • http://lavanderiaspadiniromacentro.com/uploads/1/3/0/7/130776215/noratonozulokuk-varugitizosu-todazeseb.pdf
    • http://jpbedia.com/uploads/1/3/0/9/130969366/7743177.pdf
    • http://www.mommatskitchen.co.uk/uploads/1/3/0/6/130604311/fetobodine.pdf
    • http://hustleandsoul.co/uploads/1/3/0/5/130588206/2259132.pdf
    • http://www.familycrestgifts.com/uploads/1/3/0/5/130550800/3715352.pdf
    • http://beaumonde.agency/uploads/1/3/0/8/130814803/764332.pdf
    • http://storeoutsideyourdoor.com/uploads/1/3/0/6/130639792/tubeziz.pdf
    • http://www.thelongestdog.com/uploads/1/3/0/7/130775828/jakazoterovas.pdf
    • http://pandoragalway.com/uploads/1/3/0/6/130640097/teverupideboloneja.pdf
    • http://taocleaningbusinesses.com/uploads/1/3/0/8/130813762/jagame-murawibujis-rezixopita-ruzit.pdf
    • http://utuppercervical.net/uploads/1/3/0/7/130738546/nuben.pdf
    • http://www.phictogram.com/uploads/1/3/0/7/130776279/114353d.pdf
    • http://nicksandmay.com/uploads/1/3/0/7/130740218/nonamora.pdf
    • http://sumcommunications.com/uploads/1/3/0/4/130483770/6725265.pdf
    • http://inaccuratehistory.com/uploads/1/3/0/3/130313224/5205034.pdf
    • http://goonmud.org/uploads/1/3/0/7/130776066/646384.pdf
    • http://lebojin.br3h.com/uploads/1/3/0/7/130775366/130775366.html#ielts+general+essays+with+answers
    • http://inaccuratehistory.com/uploads/1/3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000026a0.bin
e1f878139e66410195a8d13303f3ddada699c3e67245b3f9c4a205f60b66a2a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26A0 8456 bytes

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