Malicious PDF — malware analysis report

Static analysis result for SHA-256 1286851725ec85ec…

MALICIOUS

PDF

41.9 KB Authoring application: QPDF First seen: 2020-09-24
MD5: d1ec3d60cdf1c618ad8fe718a63a3767 SHA-1: 8ca48975c6d789f938519d5d94b3a8a3fca184a3 SHA-256: 1286851725ec85ec1a62b830f10be3ee74e4af73c802dfd67ab14f816d4ba449
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV and ML classifiers also flagged this file as malicious. While no scripts were directly extracted, the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://musictheatercareers.com/uploads/1/3/0/2/130270799/9192153c7e823.pdf In PDF document text
    • http://bestconference.net/uploads/1/3/0/4/130483961/2700718.pdfIn PDF document text
    • http://shardexplorers.com/uploads/1/3/0/4/130435546/add9f781.pdfIn PDF document text
    • http://rickydemedeiros.com/uploads/1/3/0/6/130604112/raxef_gopujomilebef_widazuv.pdfIn PDF document text
    • http://thriftmyhome.com/uploads/1/3/0/5/130589121/7311360.pdfIn PDF document text
    • http://21stcenturyink.com/uploads/1/3/0/4/130483514/tisimekekejin.pdfIn PDF document text
    • http://mightygoodentertainment.com/uploads/1/3/0/4/130476740/4985152.pdfIn PDF document text
    • http://completebydesigncbd.net/uploads/1/3/0/2/130288577/jepusukifimuv.pdfIn PDF document text
    • http://ckfacials.com/uploads/1/3/0/3/130313748/jowuw.pdfIn PDF document text
    • http://mybrookfield.org/uploads/1/3/0/6/130605190/b37d770f3a3.pdfIn PDF document text
    • http://taranakitimebank.nz/uploads/1/3/0/6/130639739/130639739.html#adobe+premiere+pro+free+video+transitionsIn PDF document text

Related samples 1

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_off0000127b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127B 8484 bytes
SHA-256: dff14fa537efe39355cfe438db230ba5a78b37ea9e2a8ae498f9e4a7de7c7fa5

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