Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fbdb98505a51eff…

MALICIOUS

PDF

36.2 KB Authoring application: Karbon
MD5: d2863a8fc78c041d01b7241f95753ecd SHA-1: eda9a125a02baddb4865cce8b9ca41c7114d39fe SHA-256: 6fbdb98505a51eff0674c151ea3e797ae29260c8cb406bd1c653f23645b9ab55
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on various domains, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or content distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://rifugiovallegrande.store/uploads/1/3/0/5/130539763/3455975.pdf
    • http://northernlightspace.com/uploads/1/3/0/2/130289736/wuviviwelapuneb-vukaxefuzobu-xavadiget-jovegoxe.pdf
    • http://aubreyandkatefreeman.com/uploads/1/3/0/7/130775001/dufezepe-vizope.pdf
    • http://dazluq.com/uploads/1/3/0/6/130605339/kapine.pdf
    • http://phillywaxing.com/uploads/1/3/0/7/130775828/be6b364a65c2ac.pdf
    • http://ginamoto.com/uploads/1/3/0/7/130740097/81ffa6.pdf
    • http://omarlattouf.com/uploads/1/3/0/7/130775528/8750253.pdf
    • http://dev.lotus.org.nz/uploads/1/3/0/4/130483959/bobewumezawozipize.pdf
    • http://ebookmybook.com/uploads/1/3/0/4/130483617/7447658.pdf
    • http://www.brookecandrian.com/uploads/1/3/0/7/130775746/xitatinotukewoj.pdf
    • http://fpgservices.com/uploads/1/3/0/4/130488832/sejivo.pdf
    • http://coachellascreenprinting.com/uploads/1/3/0/7/130739493/xitekizanevivisenu.pdf
    • http://cleanturndr.com/uploads/1/3/0/6/130639537/nibosezuweleje-doxup-falakilagin-womukozilevu.pdf
    • http://suitemeter.com/uploads/1/3/0/2/130287513/mizujiwexilagi-dibemubavadokaj-kojiradu-kesunev.pdf
    • http://thenumeboutique.com/uploads/1/3/0/2/130289784/xarebilowasogin_fuvuzuk_lisagukav.pdf
    • http://www.blueslimitedhk.com/uploads/1/3/0/2/130274146/zatirajumekofub.pdf
    • http://naturalcityfurniture.co.uk/uploads/1/3/0/7/130775705/pibotu_bofumob_kevutowepumikuk_likerojatufan.pdf
    • http://heinzlaw.net/uploads/1/3/0/3/130324440/zaxifekezimufase.pdf
    • http://q72spiceco.com/uploads/1/3/0/6/130621333/mokatotimikawerom.pdf
    • http://host190.carmichaelnl.com/uploads/1/3/0/7/130738504/130738504.html#isometric+graph+paper+printable+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f6b.bin
7191c4bb52159b3d1f530619136f865716a92c10ae25565bcfefa6691e30b191		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6B 7584 bytes

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