Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad3c654aca6b45e4…

MALICIOUS

PDF

42.6 KB Authoring application: Karbon
MD5: e34b8cfaf5ad399ac2bac9bc9f454fe4 SHA-1: f16a955d06e6c98dfa05dc05702f465cc76ae506 SHA-256: ad3c654aca6b45e41dfb264d305886c9a27f2586326fc173d06a143bc43acfbb
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent. No scripts were extracted, limiting the ability to determine specific payload delivery or execution methods.

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://oasisbaypv.com/uploads/1/3/0/6/130604394/14a56b12786921.pdf
    • http://rachelsaitzyk.com/uploads/1/3/0/5/130589397/sitofopanidigadifaza.pdf
    • http://sidtandkendrasaunders.com/uploads/1/3/0/2/130272905/sifotirupiwamilo.pdf
    • http://meganlarsson.com/uploads/1/3/0/6/130604476/paronafas-tomorabokit-kagalegos.pdf
    • http://tiams.net/uploads/1/3/0/7/130775205/7ff1b2493a6dac3.pdf
    • http://kamp-fit.com/uploads/1/3/0/7/130775515/dusizurugopejax.pdf
    • http://electstuartcollis.org/uploads/1/3/0/7/130740218/zasagularuj.pdf
    • http://themindfulmillennial.space/uploads/1/3/0/8/130874564/pubogetik_xamewujanuxo_kovol_sugasemafize.pdf
    • http://myersmindset.com/uploads/1/3/0/7/130776027/2d6c18bafe2.pdf
    • http://www.iprodata.com/uploads/1/3/0/9/130969722/8b7b04f3162fd18.pdf
    • http://www.mail.newlifetucson.com/uploads/1/3/0/6/130622089/kifelixuvav.pdf
    • http://shifnalbc.co.uk/uploads/1/3/0/6/130603728/ba0dbe318.pdf
    • http://vernbalicontractors.com/uploads/1/3/0/9/130969455/zoteguvinozanerow.pdf
    • http://ideationtraining.com/uploads/1/3/0/5/130539316/2566278.pdf
    • http://carlisle-taxi-number.com/uploads/1/3/0/7/130739024/b45eeb3bd9e.pdf
    • http://mta-sts.mail.heartlandpools.com/uploads/1/3/0/2/130291786/xizime.pdf
    • http://esdaw.org/uploads/1/3/0/7/130776421/pajutagavidiziv.pdf
    • http://allergyliberum.com/uploads/1/3/0/4/130476880/363de00a6.pdf
    • http://intr.link/uploads/1/3/0/6/130639668/6661506.pdf
    • http://musicdepotrocks.com/uploads/1/3/0/2/130288307/5d2149006.pdf
    • http://cameraax.com/uploads/1/3/0/4/130483338/buliwopax-pewalorupor-nirotubeja.pdf
    • http://12x-hybridmuscle.com/uploads/1/3/0/7/130776068/957745.pdf
    • http://www.surelyaf.com/uploads/1/3/0/9/130969476/wubezuxuropalobiki.pdf
    • http://ftp.tv/uploads/1/3/0/4/130435909/3737238.pdf
    • http://medicalpracticesolutions.net/uploads/1/3/0/2/130288540/2441426.pdf
    • http://www.craftyourvoice.com/uploads/1/3/0/5/130590371/130590371.html#alchemist+book+reviews+new+york+times

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004203.bin
63d4c3e3b8087c0c6c6a06b2938d74625b76a4c8f4aee642328139a9e8020d1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4203 8068 bytes

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