Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffc5c8abc059a6c0…

MALICIOUS

PDF

44.5 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 1ebf777d88cb1b3f983c6d4911d2058f SHA-1: a3c63bf780c306917385e2bc21c581cc874299cb SHA-256: ffc5c8abc059a6c093c9987b4e2c97a6ceb2bcb32b6515e02c4fe4453b349346
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to other PDF files, disguised as a gym workout manual. This behavior is indicative of a link farm or a phishing lure designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly support its malicious nature. The primary attack pattern involves social engineering to trick users into clicking on external links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://reor.com/uploads/1/3/0/5/130542953/bubobal.pdf In PDF document text
    • http://melissaneckphotography.com/uploads/1/3/0/5/130551775/eeece.pdfIn PDF document text
    • http://nbmgonline.com/uploads/1/3/0/6/130621836/4947690.pdfIn PDF document text
    • http://deft-touch.com/uploads/1/3/0/4/130477775/6772526.pdfIn PDF document text
    • http://thewaybrea.com/uploads/1/3/0/7/130740260/rikavatexizitat_manulefow_rufakolutag_rawosu.pdfIn PDF document text
    • http://nadzorybudowlane-arles.pl/uploads/1/3/0/4/130483817/jirozaruz.pdfIn PDF document text
    • http://goldpriceweb.com/uploads/1/3/0/6/130604905/9065918.pdfIn PDF document text
    • http://alisonhehir.com/uploads/1/3/0/8/130813804/520496.pdfIn PDF document text
    • http://garyroybird.com/uploads/1/3/0/5/130551654/woniledudisor.pdfIn PDF document text
    • http://tecnialuminios.com/uploads/1/3/0/5/130539449/06fca0a7d687b8.pdfIn PDF document text
    • http://motortrainingtotaal.com/uploads/1/3/0/5/130588893/0481f674f.pdfIn PDF document text
    • http://wikipf.com/uploads/1/3/0/6/130621024/sufetanoz.pdfIn PDF document text
    • http://teamwrightbrothers.com/uploads/1/3/0/4/130476255/tixofigakovamizug.pdfIn PDF document text
    • http://pwcatl.org/uploads/1/3/0/2/130292073/219018745.pdfIn PDF document text
    • http://glammeshops.com/uploads/1/3/0/6/130603874/bosesatopubim.pdfIn PDF document text
    • http://journeylaurel.net/uploads/1/3/0/6/130604152/fb2bbc.pdfIn PDF document text
    • http://x-staticapolefitness.com/uploads/1/3/0/6/130604948/sazinutulaxegu-wituzidonup-pimeperepusalu.pdfIn PDF document text
    • http://elizabethtleern.com/uploads/1/3/0/6/130605502/ba2c51122d07d.pdfIn PDF document text
    • http://northcoloradomedevac.com/uploads/1/3/0/5/130589308/e0a96a3b72fd5c.pdfIn PDF document text
    • http://carloscastellanos.info/uploads/1/3/0/6/130620576/tukijezewew-vobeviwijisab.pdfIn PDF document text
    • http://nahsesouthflorida.org/uploads/1/3/0/5/130539553/lolejizaporirameta.pdfIn PDF document text
    • http://bisforbravo.com/uploads/1/3/0/6/130620483/faxokafiba_rujetosap_nokofidipe.pdfIn PDF document text
    • http://cityonloc.com/uploads/1/3/0/3/130323184/130323184.html#gym+workout+manual+pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C71 8232 bytes
SHA-256: 592a12d96ea7ddf4d337a4b2e8f409f51723f4701341877f1040b5929e22e867