Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c688338c6c79dbe…

MALICIOUS

PDF

37.3 KB Authoring application: Soda PDF
MD5: 7f6a973ce1dd5faada02b0b515b59639 SHA-1: fbca621ab163596392c6afcc369566de98844208 SHA-256: 0c688338c6c79dbe90873063fac696e84e01d531426b3f4ed2eceb954e7e4c2a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass link farm pointing to other PDF files, a common technique for SEO poisoning or distributing malicious content. The heuristic firings and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise.

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://sbprocast.net/uploads/1/3/0/7/130775527/jebudobubejaviwabo.pdf
    • http://www.lifisupply.com/uploads/1/3/0/4/130483178/1dfb37.pdf
    • http://aeriali.net/uploads/1/3/0/4/130488987/799810.pdf
    • http://skidayz.co/uploads/1/3/0/9/130969377/ee98e0.pdf
    • http://partabcdeasyas123.com/uploads/1/3/0/4/130475932/dumojojamulavo-bilevunexiku-bejebazeniveba-pinekowife.pdf
    • http://technotrickster.com/uploads/1/3/0/2/130271038/lutudoxudegoj.pdf
    • http://ormansite.com/uploads/1/3/0/6/130640235/ab4dedb0b393.pdf
    • http://cca-sales.com/uploads/1/3/0/4/130435524/ed794b.pdf
    • http://www.escapeblueridge.com/uploads/1/3/0/2/130272862/e036fb7c37b.pdf
    • http://iconftx.com/uploads/1/3/0/6/130639661/bokigawopapu-tunikov-mosisulur-wesosoj.pdf
    • http://fibersprite.shop/uploads/1/3/0/3/130313790/9704293.pdf
    • http://desatascosgava.net/uploads/1/3/0/7/130738996/6d8bed.pdf
    • http://the-seafood-lady.com/uploads/1/3/0/4/130488199/f4f5e7ef9775c.pdf
    • http://usanewbiology.com/uploads/1/3/0/4/130476034/4ddf7f887.pdf
    • http://palmbeachsurfranch.com/uploads/1/3/0/8/130874148/junutuvidufezogagowa.pdf
    • http://vigilanttool.com/uploads/1/3/0/4/130436049/4939344.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/8/130813714/130813714.html#resign+letter+for+school+teacher+job

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003624.bin
2d4b29dd60c8f44f8150f1e5e8a6069bcb793ca8d764a01c4f29174553bc19d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3624 7972 bytes

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