Malicious PDF — malware analysis report

Static analysis result for SHA-256 92540288e5aec7eb…

MALICIOUS

PDF

36.9 KB Authoring application: pdf-parser
MD5: 6cd7ac612cd864628a20702d1835b89c SHA-1: 7f4c963b7669e82a07db087132cfdc6b7baf174e SHA-256: 92540288e5aec7eb5f2965b3cdebc8586a5c0fa30ae83cb3fb2094d41bb54ef5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files hosted on various domains. This suggests a tactic to manipulate search engine results or to distribute a large volume of content, potentially malicious. The ClamAV detection further supports its malicious nature. No scripts were extracted from this sample.

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://checksymptom.com/uploads/1/3/0/5/130539696/vudamuwa.pdf
    • http://michaeldietze.net/uploads/1/3/0/5/130551241/7042886.pdf
    • http://kgarc.com/uploads/1/3/0/8/130874042/467961.pdf
    • http://www.tahiradesigns.com/uploads/1/3/0/7/130740563/3eaccddd8aa3d.pdf
    • http://keyhive.com/uploads/1/3/0/5/130589156/zenidigurobufu.pdf
    • http://lifetunesonline.net/uploads/1/3/0/5/130588246/jowewaxudeb.pdf
    • http://thservices.net/uploads/1/3/0/8/130873939/6914399.pdf
    • http://sproutlanguage.com/uploads/1/3/0/5/130590351/3291981.pdf
    • http://detourister.com/uploads/1/3/0/2/130289625/tajaxonida.pdf
    • http://cameronmallory.com/uploads/1/3/0/8/130873975/2605758.pdf
    • http://manhattonbeachplumber.com/uploads/1/3/0/4/130436181/fokivedukadolu_rufab.pdf
    • http://americanhazelnut.co/uploads/1/3/0/2/130288318/dutipuxav.pdf
    • http://electricpantz.com/uploads/1/3/0/4/130490056/kidupaxazu.pdf
    • http://laediveclub.org/uploads/1/3/0/2/130291766/wiruwuguvuge.pdf
    • http://aaceconsulting.org/uploads/1/3/0/2/130270990/6428764.pdf
    • http://duckponics.net/uploads/1/3/0/5/130589000/d14978.pdf
    • http://milesmcallister.com/uploads/1/3/0/2/130288534/1368590.pdf
    • http://supergcoating.com/uploads/1/3/0/2/130271017/sisugozid.pdf
    • http://clonmannoncarecentre.ie/uploads/1/3/0/4/130483351/kilamuvux.pdf
    • http://host175.carmichaelnl.com/uploads/1/3/0/7/130738619/130738619.html#pi+cognitive+assessment+gratis+test
    • http://aaceconsulting.org/uplo

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d5.bin
1108244b0c2a3abe94f3f8850e44163dd1366d4113b1a1d2df1135a777a93bf9
pdf-font-stream PDF embedded font (sfnt) at offset 0x30D5 8312 bytes