Malicious PDF — malware analysis report

Static analysis result for SHA-256 668f191a26990802…

MALICIOUS

PDF

31.6 KB Authoring application: Inkscape
MD5: 2fe32bd0a4b26f70c5ea5b4a13ff9f76 SHA-1: 9baa9bf4aed8924c975401c950f141723603a7e0 SHA-256: 668f191a2699080250e415254ae52e5876a7fa404afb8bdee3115223744cf453
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The presence of a large number of embedded URLs, specifically a 'link farm', strongly suggests this document is designed to redirect users to external malicious sites. The document body content is heavily obfuscated and does not provide clear instructions, but the overall structure and URL distribution point towards a phishing or malware distribution scheme.

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://entertainmentaccelerator.com/uploads/1/3/0/5/130543543/1bd418641e.pdf
    • http://hostmaster.inertiastructures.com/uploads/1/3/0/2/130289748/7141438.pdf
    • http://valjan.com/uploads/1/3/0/4/130478772/9810755.pdf
    • http://myazulwedding.com/uploads/1/3/0/4/130488946/4effc79661.pdf
    • http://keshashouseoftranquility.com/uploads/1/3/0/5/130541904/xowudosuxewir-nemafu-xizevelamofada.pdf
    • http://niyati-plongee.com/uploads/1/3/0/6/130640199/235305.pdf
    • http://drrichardarcher.com/uploads/1/3/0/4/130488288/tuvumotede.pdf
    • http://linuxteleprompter.net/uploads/1/3/0/5/130590138/7792366.pdf
    • http://informationsystemdynamics.net/uploads/1/3/0/6/130620555/teboxujutu_fowexigo_xunujupomefojaf.pdf
    • http://pioneerhealthandmissions.org/uploads/1/3/0/7/130776409/ace4e38252b8.pdf
    • http://merx-group.com/uploads/1/3/0/2/130289460/3460285.pdf
    • http://teamwhenlambo.com/uploads/1/3/0/5/130539109/50a18.pdf
    • http://studio1999.shop/uploads/1/3/0/6/130639114/govozipel.pdf
    • http://carnivalincovington.org/uploads/1/3/0/4/130488604/detulefopadir.pdf
    • http://pack4shelf.com/uploads/1/3/0/7/130776152/4936170.pdf
    • http://englandpaper.com/uploads/1/3/0/7/130776603/nasamug-guwal-jezigumaduxoli.pdf
    • http://firesidetech.net/uploads/1/3/0/6/130604550/bemapijudafimexezo.pdf
    • http://ormansite.com/uploads/1/3/0/5/130590030/tikajimipuda-badilexel.pdf
    • http://medicalplasticmolding.net/uploads/1/3/0/7/130739525/bazibab_mixexawa_jumabotupi_fosim.pdf
    • http://gifhash.com/uploads/1/3/0/5/130589085/manafiruxolefop-dodekaponala-dulabelinurut.pdf
    • http://redeeminghope.net/uploads/1/3/0/4/130483673/vovelif.pdf
    • http://harold-stanley-junior.pleasingfood.com/uploads/1/3/0/4/130479123/130479123.html#hikvision+ptz+camera+installation+and+configuration

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001c80.bin
a72a517371075c1f1b5b3ea399b88e5315d85ec3c9bb89ae29673d4819e8c0d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C80 7128 bytes

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