Malicious PDF — malware analysis report

Static analysis result for SHA-256 3733c4a80dda5b7e…

MALICIOUS

PDF

33.8 KB Authoring application: PDFedit
MD5: a3e1c13d6290b53cd4d58aba0f7ed0d6 SHA-1: b945614cff96fe7f254615004207fd68e015b3bb SHA-256: 3733c4a80dda5b7eabbcb22a70bc2b04bd3a2bb5df84b134616b6ea703ae45cf
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files, a technique commonly used for SEO poisoning or redirecting users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support a malicious classification. The embedded URLs suggest a phishing or content-luring attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://miloandmonroeboutique.com/uploads/1/3/0/6/130621484/kiduxu.pdf
    • http://dreamfarmeracademy.com/uploads/1/3/0/5/130589094/e5500f3c29.pdf
    • http://carrietrujillohomemadeceo.com/uploads/1/3/0/5/130545097/xinus.pdf
    • http://clarityopt.com/uploads/1/3/0/9/130969921/5267024.pdf
    • http://padrepuffin.net/uploads/1/3/0/5/130544702/4438310.pdf
    • http://leadingtodaysyouth.com/uploads/1/3/0/7/130775543/tepil.pdf
    • http://nacionallegacy.com.br/uploads/1/3/0/3/130379101/8742022.pdf
    • http://napashuttlelimo.com/uploads/1/3/0/4/130436154/zozefiw_rijuzosivedi_fojav_jewim.pdf
    • http://logicalspacedesign.ca/uploads/1/3/0/3/130323972/tolefu.pdf
    • http://twelvetwelveonefive.com/uploads/1/3/0/7/130775651/7412461.pdf
    • http://beautybybfm.com/uploads/1/3/0/4/130476548/lofek-mukuvimufuwore-negimabotisibu.pdf
    • http://ellabelleslime.com/uploads/1/3/0/4/130436521/2772a48c09.pdf
    • http://stokesed508webpage.com/uploads/1/3/0/7/130775503/130775503.html#ehtelam+ka+desi+ilaj+in+urdu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e93.bin
eb42b98b25222eb8a6afce289dfe888b7a60d3849f307533d7f143588fcd4d3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E93 7068 bytes

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