Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e7ced87588599b…

MALICIOUS

PDF

27.7 KB Authoring application: Poppler-utils
MD5: c23e465f461c02d4d39edac9185649ac SHA-1: c81ad47f15ab894a4203612b0cd7c0ebea40db36 SHA-256: 63e7ced87588599b560b183e4dc8a71fe4462e38ce1323464428f862c1916fd4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a phishing or malicious content distribution attempt. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports this assessment. While no scripts were explicitly extracted, the presence of numerous external links indicates an intent to redirect the user to potentially harmful content, likely as part of a phishing campaign.

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://searchbittorrent.org/uploads/1/3/0/4/130483795/wakodowod_bimojub_nolixilubut.pdf
    • http://crispandsmooth.com/uploads/1/3/0/4/130488578/51988742.pdf
    • http://babiesinbrooklyn.com/uploads/1/3/0/4/130477131/finezawodagifig.pdf
    • http://agelessiq.com/uploads/1/3/0/4/130435862/1616323.pdf
    • http://junipergold.com/uploads/1/3/0/5/130551857/7455155.pdf
    • http://gadgetgrump.com/uploads/1/3/0/3/130323227/378383.pdf
    • http://b52farms.com/uploads/1/3/0/5/130551222/ee822ad3a6b0ecc.pdf
    • http://newmilfordpilates.com/uploads/1/3/0/8/130874017/2d4446b.pdf
    • http://boonccb.com/uploads/1/3/0/5/130541662/merukiko.pdf
    • http://www.dallasstaging.com/uploads/1/3/0/3/130313541/redemam.pdf
    • http://mrswoodworth.com/uploads/1/3/0/4/130483480/bisusakudurowoj-nuwidufajamu.pdf
    • http://nwcenterautos.org/uploads/1/3/0/9/130969308/kakox.pdf
    • http://manifestdestinyministries.org/uploads/1/3/0/9/130969435/130969435.html#kuraray+polyvinyl+alcohol+grades

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000167e.bin
6527acb56b0661e8f509af5ad1729dee98c7b9439de42a5f2f6c5661ce2c53ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x167E 6920 bytes

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