Malicious PDF — malware analysis report

Static analysis result for SHA-256 320f527c381de104…

MALICIOUS

PDF

37.6 KB Authoring application: pstoedit
MD5: 5dfba91cb679b8af0ea39b0a1fe16132 SHA-1: 1d05bfedfd6d32224f2e698847d237d8727b2099 SHA-256: 320f527c381de104a7f0398cc5d200f52dce6b425095718233241c65aa5268b7
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection infrastructure. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection 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://renovliesspecialist.com/uploads/1/3/0/6/130604467/d5566f0dbbad9.pdf
    • http://mormorsgucci.com/uploads/1/3/0/3/130313470/e4deda0cb.pdf
    • http://knockaroundllc.com/uploads/1/3/0/6/130604641/7847c363ee.pdf
    • http://kfz-kirschen.com/uploads/1/3/0/8/130874046/c35cb05d0d.pdf
    • http://dannylife.co.uk/uploads/1/3/0/2/130272613/0db02cbca16e1a4.pdf
    • http://sureadjust.net/uploads/1/3/0/8/130873717/48791ac60b177e3.pdf
    • http://northwoods-wealth-management.com/uploads/1/3/0/4/130489175/desolokajegiko.pdf
    • http://chainznthingz.com/uploads/1/3/0/4/130483645/7596471fa6c13.pdf
    • http://davidsonthecorner.com/uploads/1/3/0/3/130379391/11784ef36294f78.pdf
    • http://bigwalkies.com/uploads/1/3/0/2/130288592/mopomalozakevufasuwu.pdf
    • http://lavidacounselingcenter.org/uploads/1/3/0/3/130313468/wufamat_wefesofez_xexow_zamegedivifuxer.pdf
    • http://nancyzhang0313.com/uploads/1/3/0/6/130603763/pufusuwawo.pdf
    • http://7pryo.bpmtc.com/uploads/1/3/0/9/130969925/130969925.html#can+you+combine+pdfs+into+one+document

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000039c5.bin
063a5e196a0030f57a7c818959f1b1cc550ea6f699b482dde2330908bf300aa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39C5 8480 bytes

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