Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22f873f024638bf…

MALICIOUS

PDF

40.2 KB Authoring application: PDF Studio First seen: 2020-09-24
MD5: 497bc8178437b41fdd6b24b9dc88bc4e SHA-1: 51fdc9f746f32210c62bf192878d2e71cb35cec1 SHA-256: c22f873f024638bf76b4a78febbe3c60a99869d73c7226ceb194e36545d4c130
152 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a tactic to manipulate search engine results or distribute malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic-driving intent. 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://alecfasani.london/uploads/1/3/0/3/130379798/mebuzusafa.pdf In PDF document text
    • http://evernightmoon.com/uploads/1/3/0/7/130739583/c7ebfe7f5212.pdfIn PDF document text
    • http://bluefinmiddletonma.com/uploads/1/3/0/2/130289558/datebevipad.pdfIn PDF document text
    • http://premierbeachfl.com/uploads/1/3/0/7/130740060/lavotajopeje_varusugu_begegefawa_nilelisa.pdfIn PDF document text
    • http://ssmonogramsonline.com/uploads/1/3/0/2/130272438/dotupiva-wegufela-wagidika.pdfIn PDF document text
    • http://stephan-orth.net/uploads/1/3/0/4/130483645/rowufojufutepi_gudusarojifaxut.pdfIn PDF document text
    • http://holygifting.com/uploads/1/3/0/4/130488578/70148fd57.pdfIn PDF document text
    • http://clinicgeek.org/uploads/1/3/0/2/130272284/4626361.pdfIn PDF document text
    • http://mywebcheetah.com/uploads/1/3/0/6/130621282/wizitul.pdfIn PDF document text
    • http://ninamarcela.com/uploads/1/3/0/4/130476538/beriruziso_zejesugut.pdfIn PDF document text
    • http://wildoncherrysalon.com/uploads/1/3/0/8/130814666/39d49f792d0a8.pdfIn PDF document text
    • http://saharaexchange.com/uploads/1/3/0/6/130621784/muraxufelofiba-fesexanidoxe-famobe-mebesukefasife.pdfIn PDF document text
    • http://michelziesecke.com/uploads/1/3/0/4/130435602/2434364.pdfIn PDF document text
    • http://naturallyfierceandbeautiful.com/uploads/1/3/0/6/130620424/5295990.pdfIn PDF document text
    • http://tutorloft.com/uploads/1/3/0/6/130621098/jofevek.pdfIn PDF document text
    • http://ndr21.club/uploads/1/3/0/8/130874201/jesisug_nutofap_nejat.pdfIn PDF document text
    • http://dualphone.net/uploads/1/3/0/2/130270855/lamiku.pdfIn PDF document text
    • http://deerwoodgroup.com/uploads/1/3/0/2/130271048/xopufusajulav.pdfIn PDF document text
    • http://a1975851xstreamtravel.xsideas.com/uploads/1/3/0/6/130620317/130620317.html#bbc+learning+english+grammar+pronunciation+tipsIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2899 16108 bytes
SHA-256: 0b85d885e9b192d834d2a7a79a3caef659b09d18a65935c804b4a45caff4ed8f
font_01_sfnt_off0000400e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x400E 7624 bytes
SHA-256: 9017ec392724639783fd5d5abd9109ff663b9e77c135ac2ff6ccb4a2ebadad64