Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c1a56c34cfe5ddb…

MALICIOUS

PDF

44.5 KB Authoring application: GIMP
MD5: a706aac678dccf0a88ded531ec4182f6 SHA-1: 561b12a01b0213a092cea4260e22d55e695fd2ca SHA-256: 6c1a56c34cfe5ddb0641355e6470f2c61ff0d8f6c393db7f187a43781f0a1fad
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, a common technique for distributing malware or directing users to phishing sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, and the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. The document body, though partially corrupted, contains urgency language, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://bebelechecln.com/uploads/1/3/0/5/130543045/wuliwilamovenazuda.pdf
    • http://zudir.windowscaner.ru/uploads/2020/01/29/88009607388.pdf
    • http://geographie-structurale.org/uploads/1/3/0/5/130589409/pubekijisiner.pdf
    • http://onelegchallenge.org/uploads/1/3/0/6/130621686/gedagopodaseda_luxifibu.pdf
    • http://mollymauied2013.com/uploads/1/3/0/6/130621357/8394474.pdf
    • http://minouxjewelry.org/uploads/1/3/0/4/130476462/linupepawo.pdf
    • http://arthurwalden.com/uploads/1/3/0/6/130604355/vokijesiguf_fufetibera_zeresonejage.pdf
    • http://cmprofessionaleventsdbscg.com/uploads/1/3/0/6/130603851/bakogadifuzal_sitemoredoxava.pdf
    • http://thestuffoflegends.net/uploads/1/3/0/6/130622038/kuwaxonoxefiwid.pdf
    • http://grantdigitalmedia.com/uploads/1/3/0/5/130540176/2982399.pdf
    • http://novelistsandrahall.com/uploads/1/3/0/2/130288557/e3bda.pdf
    • http://northernrailleaders.com/uploads/1/3/0/7/130740617/130740617.html#why+amylase+increased+in+pancreatitis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001382.bin
845630e5c284e3e39907acc33101632e694f954328c70fd0aa28653ab9101e3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1382 9184 bytes

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