Malicious PDF — malware analysis report

Static analysis result for SHA-256 271d75cd1f33af1e…

MALICIOUS

PDF

46.8 KB Authoring application: LibreOffice First seen: 2020-09-24
MD5: ae3b9d9ba979d9768611f011f5cb2582 SHA-1: 5c8e1fbc77fc867fbba8a744f13a2d894a040df9 SHA-256: 271d75cd1f33af1e4fcc9605d19e0cff4c3fe23335d4f1c290e34af2837d9080
160 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files, indicating a link farm designed for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the presence of a visual download button further support a phishing or malicious download attempt. No scripts were extracted from this sample, but the structure and URL patterns are highly indicative of a malicious distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://agroricambi.com/uploads/1/3/0/6/130620745/timitasonewu_forolarigev_polegas_favufemex.pdf In PDF document text
    • http://waunakeefeedtheneed.org/uploads/1/3/0/3/130379528/3e4bc752f1b3e.pdfIn PDF document text
    • http://thehlifeonline.com/uploads/1/3/0/5/130539992/novofo-fevelagutu.pdfIn PDF document text
    • http://bmcl.us/uploads/1/3/0/8/130874362/jutejibu.pdfIn PDF document text
    • http://blackjade.club/uploads/1/3/0/2/130271019/fogora.pdfIn PDF document text
    • http://desatascosmartorell.net/uploads/1/3/0/2/130274305/gojozodivu.pdfIn PDF document text
    • http://uninetimg.com/uploads/1/3/0/5/130590716/maxegamadovuvebola.pdfIn PDF document text
    • http://cinno.ca/uploads/1/3/0/2/130274145/4819687.pdfIn PDF document text
    • http://statfcst.com/uploads/1/3/0/7/130775277/mitogubozinifawe.pdfIn PDF document text
    • http://sayneightocancer.org/uploads/1/3/0/3/130379087/dorokeru-vulavin-zejed-kekizava.pdfIn PDF document text
    • http://valholl.net/uploads/1/3/0/2/130273581/3123029.pdfIn PDF document text
    • http://bassloris.org/uploads/1/3/0/5/130550880/e10c8f53c9.pdfIn PDF document text
    • http://www.splashbrosbargrill.com/uploads/1/3/0/4/130483200/juxenoliziki.pdfIn PDF document text
    • http://74-123-72-58.mgwnet.com/uploads/1/3/0/7/130739155/vabab.pdfIn PDF document text
    • http://omarijones.net/uploads/1/3/0/7/130776350/1679892.pdfIn PDF document text
    • http://nesyb.net/uploads/1/3/0/2/130287238/zonekamu.pdfIn PDF document text
    • http://miaouofficials.com/uploads/1/3/0/4/130483191/bamapapilejovotigi.pdfIn PDF document text
    • http://thechavurah.com/uploads/1/3/0/7/130739949/batenufa_deviwejopupikaz_lanusugeso.pdfIn PDF document text
    • http://studyinfo.ch/uploads/1/3/0/6/130639837/1423825.pdfIn PDF document text
    • http://oceanreefpoolsandspas.com/uploads/1/3/0/7/130740378/lawinugudurajuz-topomadevat-mikagibori.pdfIn PDF document text
    • http://delliefure.co.uk/uploads/1/3/0/6/130621918/lujipo.pdfIn PDF document text
    • http://sosthand.com/uploads/1/3/0/4/130483494/416f0.pdfIn PDF document text
    • http://electdavidharris.com/uploads/1/3/0/4/130490451/zevawutelomimo.pdfIn PDF document text
    • http://playforgood.com/uploads/1/3/0/6/130639656/tazowuzisulawira.pdfIn PDF document text
    • http://xciteeducation.com/uploads/1/3/0/6/130639532/130639532.html#allah+names+with+meaning+and+benefits+pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C1 19184 bytes
SHA-256: 1f77aec24aa3845561297721b9f12596dfbbae650e35d427671b443c476cea3a
font_01_sfnt_off000053f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F2 8180 bytes
SHA-256: b667b5a9280812f0a3dbc9b37528ca68852ba70d5d756ff8a18107aa4d320393

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