Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff118d2374cd9563…

MALICIOUS

PDF

38.8 KB Authoring application: QPDF
MD5: c7082210177b3bc24fce6a1a4e65566e SHA-1: c7882e6e38e833f76d0fea71657e119f538bf424 SHA-256: ff118d2374cd95633147e750adcda47c3d57b2b242e7e9eece540f176ab6ef8d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body, though partially corrupted, mentions a cover letter for a nurse case manager job, suggesting a lure to entice users to click the links.

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://nurturingyourmystic.com/uploads/1/3/0/6/130639217/4096097.pdf
    • http://hostmaster.foxnet.xyz/uploads/1/3/0/6/130604477/bupiwigi_vimelur_gupekabusuxa.pdf
    • http://www.thefivestrong.com/uploads/1/3/0/2/130272569/2240925.pdf
    • http://msmith.klmlaw.com/uploads/1/3/0/2/130270991/3548815.pdf
    • http://dadeclinic.com/uploads/1/3/0/7/130740027/fevad-todavavop.pdf
    • http://patlyonscreations.com/uploads/1/3/0/5/130590200/betoboxaxifajuvej.pdf
    • http://1600charlestonregionalparkway.com/uploads/1/3/0/7/130776338/xapexolidobusepabiwa.pdf
    • http://ahemartcollective.com/uploads/1/3/0/4/130490451/fe0a4056.pdf
    • http://coronado.be/uploads/1/3/0/7/130738631/mamari.pdf
    • http://www.nopesgoes.com/uploads/1/3/0/7/130776639/defuwefivuxa-laxamotusawuxod.pdf
    • http://absolutellc.us/uploads/1/3/0/6/130604185/2585501.pdf
    • http://uitperu.com/uploads/1/3/0/8/130814672/lipagutiraxolan.pdf
    • http://www.salesleadershipseries.com/uploads/1/3/0/7/130775675/pibomebuwuja-vezotorad-sajipet-vebaxumorixix.pdf
    • http://www.fromitalywithpassion.com/uploads/1/3/0/2/130271245/fogogitubukewafowava.pdf
    • http://dominiquehanover.com/uploads/1/3/0/4/130435872/gugomob.pdf
    • http://cpanel.ncrdolphins.com/uploads/1/3/0/4/130478307/pamakidovup-wajedumer-walaf-fuzupobib.pdf
    • http://kristylewis.fish/uploads/1/3/0/3/130379237/kofela.pdf
    • http://noxonroadpta.com/uploads/1/3/0/6/130620546/a0dc124.pdf
    • http://holoae.com/uploads/1/3/0/5/130543483/8f862.pdf
    • http://www.victorjoelortiz.com/uploads/1/3/0/5/130540118/8dc537b74be74f.pdf
    • http://ecopowerelectric.net/uploads/1/3/0/2/130291699/movogivinujexenuvig.pdf
    • http://ackoeltechniek.nl/uploads/1/3/0/5/130588596/15857073a89.pdf
    • http://evachurch.org/uploads/1/3/0/8/130873850/darafinivatom-wefejap-jifujup.pdf
    • http://mariapiafilms.com/uploads/1/3/0/4/130488749/wazigenupi-fekawu.pdf
    • http://migrationbot.ca/uploads/1/3/0/5/130546183/8983910.pdf
    • http://unicoiwinetrail.com/uploads/1/3/0/5/130542769/130542769.html#sample+cover+letter+for+nurse+case+manager+job
    • http://hostmaster.foxnet.x

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003371.bin
f8d75dca8d58b0bbd7581d24325932d6c1b4ac0ac5dc788fd200b7cd99c99ff4
pdf-font-stream PDF embedded font (sfnt) at offset 0x3371 7852 bytes