Malicious PDF — malware analysis report

Static analysis result for SHA-256 e593df3f77137bb1…

MALICIOUS

PDF

41.8 KB Authoring application: Poppler-utils First seen: 2020-09-24
MD5: 50d011c53cae51ca28ed82c6dfb38927 SHA-1: a9ef652542eb43e7dc1fda441a35a705ff3d4a13 SHA-256: e593df3f77137bb115fe330975470d31d3e40a3c4c8f50fc0f3494e1ee7fda22
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or redirection scheme. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' suggests a phishing or traffic redirection intent. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of numerous external links, with the first identified URL being http://www.maddieandpat.com/uploads/1/3/0/4/130488169/borimaxusifubuj-vupasadupole-walupovorudaz-xonaxa.pdf. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://www.maddieandpat.com/uploads/1/3/0/4/130488169/borimaxusifubuj-vupasadupole-walupovorudaz-xonaxa.pdf In PDF document text
    • http://ruggconsulting.com/uploads/1/3/0/4/130483271/buzanavugene_famedorekotej_bisiwitarigim.pdfIn PDF document text
    • http://www.localsonlychattanooga.com/uploads/1/3/0/8/130874477/8f872d036e1aa.pdfIn PDF document text
    • http://thethonyguyfoundation.com/uploads/1/3/0/4/130435688/2f0baf08c.pdfIn PDF document text
    • http://directorofhappiness.com/uploads/1/3/0/7/130738871/966595.pdfIn PDF document text
    • http://mail.highhillproductions.com/uploads/1/3/0/5/130588579/7368189.pdfIn PDF document text
    • http://henergy.co.uk/uploads/1/3/0/8/130874477/04121b6.pdfIn PDF document text
    • http://locationperformance.com/uploads/1/3/0/4/130435598/galuromiv.pdfIn PDF document text
    • http://nutrition-doctor.co.uk/uploads/1/3/0/4/130483118/mijunefowi.pdfIn PDF document text
    • http://www.leerstichting.nl/uploads/1/3/0/6/130639413/viriwa.pdfIn PDF document text
    • http://southcoastgourmetgifts.com/uploads/1/3/0/7/130775775/76506.pdfIn PDF document text
    • http://latecritic.com/uploads/1/3/0/4/130488282/40e743533bf.pdfIn PDF document text
    • http://sth-168.com/uploads/1/3/0/2/130274322/bikadija-misusirulazir-xisezazoda-xexipexi.pdfIn PDF document text
    • http://weddingwellsevents.com/uploads/1/3/0/5/130590054/guruseji-pugefupupulor-nakofenalag-fudis.pdfIn PDF document text
    • http://newlifesocal.org/uploads/1/3/0/7/130776264/7443308.pdfIn PDF document text
    • http://readingexpression.com/uploads/1/3/0/8/130873786/4909255f.pdfIn PDF document text
    • http://nhsilbert.net/uploads/1/3/0/6/130603767/5b0738.pdfIn PDF document text
    • http://mjrlashes.com/uploads/1/3/0/5/130588712/xegotonofovunakoz.pdfIn PDF document text
    • http://ebmccallanbuildingltd.com/uploads/1/3/0/2/130289496/130289496.html#free+pattern+for+japanese+cross+back+apronIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38C5 2616 bytes
SHA-256: d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04
font_01_sfnt_off00004480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4480 8240 bytes
SHA-256: bc87c6b2fbcbd0406199b10b45be49c656c6c49f09d8bca8bedee12724887b43