Malicious PDF — malware analysis report

Static analysis result for SHA-256 978fc49c44a2a900…

MALICIOUS

PDF

38.1 KB Authoring application: Mobipocket Creator
MD5: f30eb2ff582e11710672e8aa6b244c47 SHA-1: 6c25d4cf9e14b7899d511571dc8599b30b4a69f9 SHA-256: 978fc49c44a2a900c564550242b5352f784c2a08aaa207d73a5b0c188efba7e1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The primary heuristic firing indicates a PDF containing a large number of external links, with the first URL being http://ninthquarterproperties.com/uploads/1/3/0/4/130475979/4082506.pdf. This suggests the document's purpose is to redirect users to a network of linked PDFs, likely for SEO spam or to distribute further malicious content.

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://ninthquarterproperties.com/uploads/1/3/0/4/130475979/4082506.pdf
    • http://arielledollinger.com/uploads/1/3/0/4/130476082/jeraxexuboji.pdf
    • http://dikaios-legal.com/uploads/1/3/0/3/130323506/rarix.pdf
    • http://resurrectionofarunner.com/uploads/1/3/0/6/130639269/d9448c04.pdf
    • http://mrpodmers.com/uploads/1/3/0/4/130476288/3d7545ff.pdf
    • http://affordableinsurancedirect.com/uploads/1/3/0/6/130621663/337d7a8d5e70.pdf
    • http://olgausova.com/uploads/1/3/0/6/130604136/7309023.pdf
    • http://ntscdfregionals.com/uploads/1/3/0/2/130289375/bedijuse.pdf
    • https://tibibadebebak.weebly.com/uploads/1/3/0/4/130477003/ff466.pdf
    • http://solesbysol.com/uploads/1/3/0/6/130621506/4502567.pdf
    • http://mimca-whistler.shop/uploads/1/3/0/3/130323491/motesivugakerer_nazagok_fosiposip_fedofuwebovofez.pdf
    • http://mindmadekc.com/uploads/1/3/0/4/130488220/wotufitexikopus_jekobezaraludon.pdf
    • http://calmongoods.com/uploads/1/3/0/5/130551176/130551176.html#how+to+boost+your+self+esteem+worksheets

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012bb.bin
6612b928190338a521bfa4cc9c249e8da729dc7ed584ead0946167a7d4b26ae7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12BB 7648 bytes

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