Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebd1e506193b2003…

MALICIOUS

PDF

44.6 KB Authoring application: Soda PDF
MD5: 08560394596467607bc67e0a982a885f SHA-1: 1a01599846059d89acc77e9c13f359bb4e1ca693 SHA-256: ebd1e506193b200322cf45304d0185fff4a6b62f0f39203d1d40144de15672ba
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as detected by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious. The document body, though heavily corrupted, appears to be related to English grammar, possibly as a lure. The primary attack pattern involves directing users to a vast network of external PDF files hosted on numerous domains, suggesting a link farm or distribution mechanism for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mysustainablefashion.com/uploads/1/3/0/7/130775741/xefotevurij_sazul.pdf
    • http://200jobs.com/uploads/1/3/0/3/130323631/sasamivaxa_rozebadimaben_metafezosufer_bigemaxetanemex.pdf
    • http://amommachoosingjoy.com/uploads/1/3/0/7/130776403/gexul.pdf
    • http://futuredeadbeatdad.com/uploads/1/3/0/7/130775201/fimape.pdf
    • http://muttleys.ca/uploads/1/3/0/5/130541688/gadog.pdf
    • http://nicolestampsllc.com/uploads/1/3/0/6/130639472/ff7fccb9ea.pdf
    • http://thehandmadehydrangea.com/uploads/1/3/0/6/130621665/bezelovu.pdf
    • http://www.rawurge.co.uk/uploads/1/3/0/6/130639308/4684171.pdf
    • http://nathanpeachey.com/uploads/1/3/0/4/130483238/niduz.pdf
    • http://yourhomesitter.com/uploads/1/3/0/5/130544954/zafulesulenirit.pdf
    • http://arapaho-massage.com/uploads/1/3/0/2/130289392/3378414.pdf
    • http://thewaxmeltfactory.com/uploads/1/3/0/2/130289161/lazil.pdf
    • http://detoxsearch.com/uploads/1/3/0/5/130540359/jovogada.pdf
    • http://dynamicsymmetryart.com/uploads/1/3/0/2/130272551/3767025.pdf
    • http://indianahomestaging.net/uploads/1/3/0/4/130489833/db9b35d0ed2d.pdf
    • http://mail.livingstonia.org.uk/uploads/1/3/0/5/130544226/vafazafazime.pdf
    • http://engagesw.com/uploads/1/3/0/2/130271094/kejarebotuloruxopul.pdf
    • http://industreams.org/uploads/1/3/0/7/130739101/708bf2db7386b.pdf
    • http://vibrs.com/uploads/1/3/0/7/130739456/misobavafewowi_gusafafitipibu_bivexe_kugosekofupo.pdf
    • http://trinitycastle.com/uploads/1/3/0/6/130639241/7123732.pdf
    • http://host205.carmichaelnl.com/uploads/1/3/0/6/130604541/130604541.html#genitivo+saj%C3%B3n+en+ingl%C3%A9s+pdf
    • http://muttleys.ca/uploads/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034b1.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34B1 16204 bytes
font_01_sfnt_off00004d0a.bin
c06cd742c62ad10e59009b3bae62f39c638e9234694249641c54d65999f1e67b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D0A 9128 bytes

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