Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f7cb2a466afb2f7…

MALICIOUS

PDF

36.0 KB Authoring application: Poppler-utils
MD5: 5911edaf1f72996fc6238c81b15274b6 SHA-1: bfb7775280e60093c3613c9ea7eee5aced3d476c SHA-256: 1f7cb2a466afb2f78d34ae47793807995e99c4bae1186ed8423e58b46150bbf6
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or redirection scheme, as flagged by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection further confirms its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are the primary indicators of compromise, suggesting a phishing or malware distribution attempt.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://schallisflyfishing.de/uploads/1/3/0/2/130270985/963e4b0e0b1fad.pdf
    • http://smartmobilityinc.com/uploads/1/3/0/2/130272415/08c7477791ad4.pdf
    • http://merrycollections.com/uploads/1/3/0/4/130476102/4508672.pdf
    • http://adultgleeclubaustralia.com/uploads/1/3/0/6/130604752/vupiwus-gesiwiga-zuwivozavi-bibifenevamusi.pdf
    • http://mtdorabuzz.com/uploads/1/3/0/6/130622083/juvujoju.pdf
    • http://nr.ctk.net/uploads/1/3/0/5/130588951/roxugofejabivo.pdf
    • http://nataliegarces.com/uploads/1/3/0/4/130435938/3455565.pdf
    • http://ivyhutchison.com/uploads/1/3/0/6/130639298/aab44aa515bc.pdf
    • http://lsfshop.nl/uploads/1/3/0/7/130739933/1218535.pdf
    • http://notallroses.com/uploads/1/3/0/3/130323266/belil.pdf
    • http://x0729992xstreamtravel.xsideas.com/uploads/1/3/0/7/130738861/130738861.html#baby+animals+color+pages

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003587.bin
d20fee624652276bede35fe1e289733ed6bf79da37be93a05483cfa54b8ea829		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3587 8312 bytes

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