Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffb5b6dbadbb404c…

MALICIOUS

PDF

40.0 KB Authoring application: Karbon
MD5: 6db41db37eca75c3ebf57014e6bab775 SHA-1: 489b2ba392f95f22476f9d3a1863232ea92ce3c4 SHA-256: ffb5b6dbadbb404c45edf9d2cec324be021074f5bc0fada0cd4c53735fdb5316
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, a technique commonly used in SEO poisoning attacks to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature. The document body content is heavily obfuscated and does not provide clear intent, but the heuristic firings strongly indicate a phishing or malware distribution attempt.

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://saugatuckboardreelect.org/uploads/1/3/0/4/130483265/a1da83f.pdf
    • http://www.peoplenatureconnection.net/uploads/1/3/0/5/130550794/sazepebu.pdf
    • http://bucketmedia.net/uploads/1/3/0/5/130539763/jozubepirares.pdf
    • http://sharedtravel.voyagerwebsites.com/uploads/1/3/0/4/130490151/6317515.pdf
    • http://boatinsurance.wales/uploads/1/3/0/6/130604525/niperumifanofej.pdf
    • http://cannaquenchers.com/uploads/1/3/0/5/130542977/4420c3e2.pdf
    • http://rexrussolaw.com/uploads/1/3/0/6/130639165/31f73740723.pdf
    • http://www.soulsoupbv.nl/uploads/1/3/0/5/130590298/bugire-givapekodazorub-depufidejef.pdf
    • http://cetai.org/uploads/1/3/0/4/130477533/651f35990.pdf
    • http://thinkhappyvibehappy.com/uploads/1/3/0/4/130483385/mepogiro_jibov_fifegiwire.pdf
    • http://sex888.site/uploads/1/3/0/6/130620467/lukokarofalu-jenifidexez-xutozokaw.pdf
    • http://daciajones.com/uploads/1/3/0/5/130539838/210628.pdf
    • http://rickformichigan.net/uploads/1/3/0/5/130588157/06f1fd7ae7ec.pdf
    • http://europeantouchautomotivedetail.com/uploads/1/3/0/8/130813829/venopepipafevoxa.pdf
    • http://nedwaves.com/uploads/1/3/0/5/130541765/getolodidij.pdf
    • http://healdsburgflorist.com/uploads/1/3/0/5/130550874/220357.pdf
    • http://mmengelhard.com/uploads/1/3/0/6/130605501/nebopesedexeroj.pdf
    • http://ready2startup.org/uploads/1/3/0/7/130739061/5993480.pdf
    • http://acouturelife.com/uploads/1/3/0/5/130588572/xudoguwobivime.pdf
    • http://solarscrappers.com/uploads/1/3/0/7/130739886/3104804.pdf
    • http://74-123-78-37.mgwnet.com/uploads/1/3/0/7/130739399/130739399.html#hey+there+delilah+acoustic+guitar+sheet+music
    • http://thinkhappyvi

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cd5.bin
e741bf05ac2ebc907d3dc00cd1039ac86cede012e774da89a1e20520b1a956e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CD5 7912 bytes

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