Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6dc64536cab71c…

MALICIOUS

PDF

38.2 KB Authoring application: PDF Studio First seen: 2020-09-24
MD5: 56cb4b6675e351d1fa1bd8cb55d942e6 SHA-1: 8f90803e46a3511684f17b46b551820063663b23 SHA-256: ef6dc64536cab71c69f3f6860bf70d539090f5efb1aa8543df6ad20b54f4bdd0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or SEO spam. The embedded URLs are the primary indicators of compromise, directing users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://333diamondwholesale.com/uploads/1/3/0/5/130551896/3828649.pdf In PDF document text
    • http://senyonga.com/uploads/1/3/0/8/130813888/zefex.pdfIn PDF document text
    • http://shanebrelesky.com/uploads/1/3/0/6/130605338/6786867.pdfIn PDF document text
    • http://aestheticainteriors.com/uploads/1/3/0/3/130379169/paruteguromi_felolukebidit.pdfIn PDF document text
    • http://bukudata.com/uploads/1/3/0/4/130475980/8306787.pdfIn PDF document text
    • http://christinecarson.net/uploads/1/3/0/6/130620501/xanuv.pdfIn PDF document text
    • http://julieonofrio.com/uploads/1/3/0/5/130550760/juxupuziwefobi_veduvujoritin.pdfIn PDF document text
    • http://74-123-79-232.mgwnet.com/uploads/1/3/0/5/130540493/6138021.pdfIn PDF document text
    • http://paddleboardannamaria.com/uploads/1/3/0/2/130289365/3926668.pdfIn PDF document text
    • http://mykindoffamily.com/uploads/1/3/0/4/130476035/4dbdfcf495b52e.pdfIn PDF document text
    • http://gayvs.com/uploads/1/3/0/4/130435938/fizanamatewewadowaf.pdfIn PDF document text
    • http://victoryflorida.org/uploads/1/3/0/5/130588315/zikimotevas.pdfIn PDF document text
    • http://franksiccone.com/uploads/1/3/0/5/130550910/nolaka.pdfIn PDF document text
    • http://stopgossipping.com/uploads/1/3/0/7/130775012/gifal-divoxevugik-xifikujamoji.pdfIn PDF document text
    • http://dabeedesign.com/uploads/1/3/0/8/130873796/jitan.pdfIn PDF document text
    • http://blackhawbuilders.com/uploads/1/3/0/2/130272591/130272591.html#cryopreservation+of+animal+cell+culture+pdfIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AD6 7940 bytes
SHA-256: c16d33ded66e64a26e77662e8ced15ba68a792cd838b4a76447777d41a1fa64b

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