Malicious PDF — malware analysis report

Static analysis result for SHA-256 50d8ac137917f9a3…

MALICIOUS

PDF

38.6 KB Authoring application: OpenOffice.org First seen: 2020-09-07
MD5: 934b63b89c5cd09523f9f7c21b939f51 SHA-1: c978b3c34fb6f1b3d21548457025ee85cced829a SHA-256: 50d8ac137917f9a31a9aea756bef7dfd616dff6d34a4899ead326349bdf28375
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to other PDF files hosted on various domains, suggesting a link farm or distribution mechanism. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The document body is heavily obfuscated and unreadable, providing no direct clues to the user-facing lure.

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://warp-field.com/uploads/1/3/0/3/130323957/gusekazit.pdf In PDF document text
    • http://gbnewsroom.com/uploads/1/3/0/4/130435857/7de2f2bca.pdfIn PDF document text
    • http://vwear.net/uploads/1/3/0/7/130775701/jamuzoxaviwedogulam.pdfIn PDF document text
    • http://1ststeptolife.com/uploads/1/3/0/7/130774969/372922.pdfIn PDF document text
    • http://hostmaster.adsrpro.uk/uploads/1/3/0/2/130292148/3788091.pdfIn PDF document text
    • http://pickpocketlabs.com/uploads/1/3/0/7/130775378/nozowi.pdfIn PDF document text
    • http://www.jameskennedygalleries.com/uploads/1/3/0/2/130289243/sopamimozuturubeke.pdfIn PDF document text
    • http://mrshalford.com/uploads/1/3/0/2/130272509/0617d4a.pdfIn PDF document text
    • http://markkennethwilliamsphotography.com/uploads/1/3/0/7/130775629/5639125.pdfIn PDF document text
    • http://aaagospelminister.com/uploads/1/3/0/6/130620622/9440378.pdfIn PDF document text
    • http://autodiscover.pottybrake.com/uploads/1/3/0/6/130604841/wanofunowelo.pdfIn PDF document text
    • http://sincerearts.net/uploads/1/3/0/2/130272330/4750382.pdfIn PDF document text
    • http://twentytwentynine.net/uploads/1/3/0/5/130588943/1111892.pdfIn PDF document text
    • http://sigmascout.com/uploads/1/3/0/5/130550700/6db0345620affb8.pdfIn PDF document text
    • http://womenavantgarde.com/uploads/1/3/0/5/130588286/4645818.pdfIn PDF document text
    • http://itsagreatdayforcoffee.com/uploads/1/3/0/5/130551390/bejivojejedajuso.pdfIn PDF document text
    • http://godlikemedia.com/uploads/1/3/0/3/130323181/d5669.pdfIn PDF document text
    • http://wd7nz.bpmtc.com/uploads/1/3/0/5/130551188/6f858.pdfIn PDF document text
    • http://autodiscover.storgebhs.com/uploads/1/3/0/8/130813416/130813416.html#nitric+acid+msds+merckIn PDF document text

Related samples 3

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_off000037f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37F1 8472 bytes
SHA-256: a3bd770347ab03617c543dfa373d91304cfd81c2028578248cbae6d36de16b55

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