Malicious PDF — malware analysis report

Static analysis result for SHA-256 50d403c1ffb94c86…

MALICIOUS

PDF

38.4 KB Authoring application: SWFTools
MD5: b8b223b59c7c3a33e692acd5b3670711 SHA-1: 50803de2394d39575ab77f0d2a9094daec754142 SHA-256: 50d403c1ffb94c866a22acfd7df37868465436dc2ee9fe9a267d814a0d1c98dc
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 various domains, identified as a link farm. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly suggest this document is part of a phishing or traffic redirection scheme. The embedded URLs are the primary indicators of compromise, leading to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://resort24stay.online/uploads/1/3/0/7/130739399/9420843.pdf
    • http://mackenzieemievents.com/uploads/1/3/0/2/130288514/c4ca84.pdf
    • http://dredwinkurniawan.com/uploads/1/3/0/7/130775893/rufefudubom.pdf
    • http://messiniako-catering.com/uploads/1/3/0/7/130739661/lezure.pdf
    • http://hostmaster.marcel-gatteaux.com/uploads/1/3/0/4/130476619/7011074.pdf
    • http://restorativesolutions.nz/uploads/1/3/0/5/130551523/afd55c0d886a23.pdf
    • http://americanfiberglasspoolcompany.com/uploads/1/3/0/5/130588822/gotatoresopax.pdf
    • http://mingalarfoods.com/uploads/1/3/0/8/130813120/cc107c19.pdf
    • http://boisetintanddetail.com/uploads/1/3/0/3/130323302/jovunu.pdf
    • http://www.cvqualityroofinginc.com/uploads/1/3/0/4/130436313/laxurilot.pdf
    • http://rwbickfordconstruction.com/uploads/1/3/0/6/130640015/supizitipiwu.pdf
    • http://camelliacharlesjewelry.com/uploads/1/3/0/5/130588685/zajexaduvi_jitemaxuw_jegimujus.pdf
    • http://witherlysgreenhouse.com/uploads/1/3/0/7/130776716/130776716.html#free+printable+coloring+pages+for+kindergarten

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e38.bin
79b760b903513271cb8b0d2d0ed2566db2f2285597c3cc78b317f5d3e62eda65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E38 7984 bytes

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