Malicious PDF — malware analysis report

Static analysis result for SHA-256 62bcd1c6c548bc79…

MALICIOUS

PDF

34.6 KB Authoring application: Inkscape
MD5: 632d2f98014104eaffadb953fe4a3290 SHA-1: fe9781f44ed4a102cdad4902f966e6bcd033e11f SHA-256: 62bcd1c6c548bc79d8710b27d005d35dc971c3c2a252654091c7902a2edb43fb
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. ClamAV detected this as Pdf.Phishing.TtraffRobotInstall-7605656-0, and a machine learning classifier also flagged it as malicious. The document body itself is heavily corrupted and contains some of the URLs, suggesting an attempt to disguise the malicious links.

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://tasmaniadisabilitylobby.com.au/uploads/1/3/0/4/130488092/nituwa-ditiboxivefunob-pesagokenelud.pdf
    • http://basedstickman.com/uploads/1/3/0/2/130272851/e0483d8e71c07.pdf
    • http://thirdstate.org/uploads/1/3/0/7/130776166/vametaxozujapo_vanijazakutulup_jimafedupune.pdf
    • http://thebridgeyouthcenter.org/uploads/1/3/0/3/130324234/rukojulosuz.pdf
    • http://10122006.com/uploads/1/3/0/4/130488365/jisejusarexudeg.pdf
    • http://imaginecare.net/uploads/1/3/0/5/130588749/kutamom.pdf
    • http://rainshawl.com/uploads/1/3/0/6/130622077/lutivabelejefa.pdf
    • http://kirtiklis.com/uploads/1/3/0/6/130620792/59a155d.pdf
    • http://nomadiccollege.com/uploads/1/3/0/7/130738863/c65f90c5.pdf
    • http://www.ckelly1lax.com/uploads/1/3/0/2/130288402/xiges-nigusikijon-dowebi.pdf
    • http://mta-sts.mx.papajoeshumblekitchen.com/uploads/1/3/0/7/130775046/7178252.pdf
    • http://creepyoutfitlab.com/uploads/1/3/0/6/130621155/1139867.pdf
    • http://visionlinkshotelapartments3.devsite-1.com/uploads/1/3/0/4/130483134/130483134.html#disney+animal+kingdom+lodge+room+rates

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d68.bin
b312ca936975b9abcaceaa9584b1647332dda5eb1c9a19f7b2b6d03314b5d2d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D68 8476 bytes

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