Malicious PDF — malware analysis report

Static analysis result for SHA-256 f995e6ec4b1c3421…

MALICIOUS

PDF

38.9 KB Authoring application: LibreOffice
MD5: 5881b9065a72ab08a97612a74eabb7a2 SHA-1: d4b8f41a97a9fbf1d414fcabf00e61f5d734a784 SHA-256: f995e6ec4b1c34218ba4ea0a06bf59bd4bf71a3f6097698430f20693a2aaf65b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. The document body, though partially corrupted, contains references to school admissions and KVS, suggesting a lure to disguise the malicious link farm.

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://zumbawithdenisenyc.com/uploads/1/3/0/7/130740440/2610a693464.pdf
    • http://www.thewilddaisyboutique.com/uploads/1/3/0/4/130488743/kaxolinumazi.pdf
    • http://www.documenteddouche.com/uploads/1/3/0/9/130969829/kunowirowopulo.pdf
    • http://realitywhisperer.com/uploads/1/3/0/5/130538870/vobusa_sedowumaxuto_segamoveta_povumamemulure.pdf
    • http://www.paiperformance.com/uploads/1/3/0/5/130551534/4f87266baa15aa.pdf
    • http://shutterlyamazingphotography.com/uploads/1/3/0/2/130274368/nozopudur.pdf
    • http://hfes2019.org/uploads/1/3/0/5/130589218/f4c24af69e3135.pdf
    • http://www.casenoibucuresti.com/uploads/1/3/0/5/130546244/5040791.pdf
    • http://mandyowen.net/uploads/1/3/0/6/130605034/kisatedikuzosed-folitodagu-nexizitufete-runujuva.pdf
    • http://www.nicolekingmusic.com/uploads/1/3/0/6/130604449/zavuv_katoradumamo_dedusekibov_zuzudeva.pdf
    • http://evq.ro/uploads/1/3/0/7/130738854/nubulopizasevatup.pdf
    • http://mysmartinspection.com/uploads/1/3/0/4/130489467/dolapexuzu.pdf
    • http://youngatheartdesigns.com/uploads/1/3/0/7/130739778/c5573e34.pdf
    • http://mynaturalbliss.com/uploads/1/3/0/2/130274338/jejet-juxolojub-pejifejaju.pdf
    • http://buildinfinitypools.com/uploads/1/3/0/4/130435712/cfc0820c9c9fa07.pdf
    • http://heissik.com/uploads/1/3/0/7/130738850/zavuregesigo-zefidewapubi.pdf
    • http://bigboymoverstest.club/uploads/1/3/0/4/130476525/1242030.pdf
    • http://allberta.com/uploads/1/3/0/7/130775551/782f9f5.pdf
    • http://diestrodecuerdas.com/uploads/1/3/0/6/130620594/3022534.pdf
    • http://sprucestreetlandscaping.com/uploads/1/3/0/6/130621614/novikafexumu.pdf
    • http://elrinteriors.com/uploads/1/3/0/4/130483110/fegofetadipog-kasefomunetizu-labegonewopon-viziw.pdf
    • http://rochesterbusinesses.com/uploads/1/3/0/7/130776336/163b68f0429.pdf
    • http://0abe.brdge.org/uploads/1/3/0/2/130271042/130271042.html#kv+school+admission+2018-19+for+1st+class

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003752.bin
e9b74f4a70878c6954ded74418c85bf29e23b767e1b4e2acf35200fe77153ce0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3752 7436 bytes

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