Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f8da761a679ad4…

MALICIOUS

PDF

36.2 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: 6b0405c5fec4453a90b0d4764380979f SHA-1: c75cafbdc9d8a7a2351753719ecee6ed613fb377 SHA-256: a8f8da761a679ad4c725a4e8617a87dcbcabc4d4e7c1fcfe9b327d9cf0904417
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which is indicative of a link farm or redirection tactic. The ClamAV detection further supports its malicious nature. The document body, though partially corrupted, contains several of these URLs, suggesting the primary purpose is to direct users to external, potentially malicious, content.

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://davediamond.info/uploads/1/3/0/2/130274267/gibogokive.pdf In PDF document text
    • http://hostmaster.catrionabaker.com/uploads/1/3/0/6/130620756/ledakorimaj-berumuwer-sefujowofodurow.pdfIn PDF document text
    • http://trailerrepairrichmond.com/uploads/1/3/0/6/130639468/birevixiwekize_sunajodulu.pdfIn PDF document text
    • http://pof-freeaddcalls.com/uploads/1/3/0/5/130543106/1a3e6dc67f2fa3.pdfIn PDF document text
    • http://agileand.com/uploads/1/3/0/2/130288348/menobudokaz.pdfIn PDF document text
    • http://yincaravana.com/uploads/1/3/0/5/130546385/metasurelenitu_josepimifazi_ladob.pdfIn PDF document text
    • http://ivjournal.org/uploads/1/3/0/5/130550888/3495080.pdfIn PDF document text
    • http://frnkjmz.com/uploads/1/3/0/8/130874118/6231351.pdfIn PDF document text
    • http://eyris.com/uploads/1/3/0/7/130776451/1127142.pdfIn PDF document text
    • http://thedimecincy.com/uploads/1/3/0/5/130588360/rudoxo-lifag-mokevidoz.pdfIn PDF document text
    • http://sssrugh.com/uploads/1/3/0/6/130639945/b26d02fdc.pdfIn PDF document text
    • http://suehail.com/uploads/1/3/0/7/130738662/vaduxubal.pdfIn PDF document text
    • http://shopluckybamboo.com/uploads/1/3/0/7/130739289/f09ba13.pdfIn PDF document text
    • http://webmail.dickersongreenseminary.org/uploads/1/3/0/6/130621370/130621370.html#oceans+by+hillsong+violin+sheet+musicIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000330c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330C 9268 bytes
SHA-256: 327c005f10755554dd716e05bfe0974796d08b746335175248cc4cc10cb6eaeb

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