Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3c554827f568062…

MALICIOUS

PDF

34.5 KB Authoring application: PDFBox
MD5: 8f457082a4a7b080560fd9d6d8b877df SHA-1: 2ca4cf7090330105600e1a1a0d4ef09902e5c0a4 SHA-256: f3c554827f568062521686ce840c8dada404e7b6fa4bba75d7a4e23ef8cbf8dc
120 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 pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. 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://mikelindenthal.com/uploads/1/3/0/7/130739886/3a0da87b84e75.pdf
    • http://nursisociety.org/uploads/1/3/0/5/130542872/8044703.pdf
    • http://brentminehandesign.com/uploads/1/3/0/6/130639542/aec379afa1.pdf
    • http://staceymbrown.com/uploads/1/3/0/7/130776523/774969dd565e1.pdf
    • http://untdnatives.com/uploads/1/3/0/7/130739056/metefiz_suzap_pokano_sozotape.pdf
    • http://contacttyler.com/uploads/1/3/0/4/130475955/3380591.pdf
    • http://micahjoel.net/uploads/1/3/0/5/130551197/lesujuxo.pdf
    • http://moniquesdreamsounds.com/uploads/1/3/0/6/130603906/53866e16cdb8.pdf
    • http://listenupmedia.net/uploads/1/3/0/3/130323377/sefamigi_dikim_rarepetidafabot.pdf
    • http://clearcottonph.com/uploads/1/3/0/7/130776255/kakojekavi.pdf
    • http://patrickjbryan.com/uploads/1/3/0/5/130551729/c91b5.pdf
    • http://destinationsoflove.voyagerwebsites.com/uploads/1/3/0/7/130739754/130739754.html#t%C3%A9cnicas+e+instrumentos+para+la+recolecci%C3%B3n+de+datos+el+cuestionario

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e16.bin
5d15c56f8a7d880a83c737778ae72d54bff541da0063dfc463344b938c32770a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E16 9044 bytes

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