Malicious PDF — malware analysis report

Static analysis result for SHA-256 972537d97fd8b203…

MALICIOUS

PDF

40.5 KB Authoring application: PDF Studio
MD5: bd6da7ca695d74d2b7b67521ee394f6f SHA-1: 54f60d50cc1bf9d9321391bcb1033943112847b6 SHA-256: 972537d97fd8b203ef69810422f08b13e0e182fe59d109ab835f0844af1d2c7a
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though truncated, mentions 'eating right for your blood type', suggesting a lure to entice users to click on the embedded 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://gsgfineart.com/uploads/1/3/0/4/130483558/7494080.pdf
    • http://mizzoupt.com/uploads/1/3/0/7/130774966/9862163.pdf
    • http://yourpublicistknows.com/uploads/1/3/0/6/130604145/beec0.pdf
    • http://deja-neu.com/uploads/1/3/0/3/130379528/tumifufi.pdf
    • http://therealmommy.com/uploads/1/3/0/5/130539599/218c97fa3.pdf
    • http://049months.com/uploads/1/3/0/6/130604850/5857331.pdf
    • http://netspeedsolutions.com/uploads/1/3/0/6/130604333/20b108.pdf
    • http://ehkhoo.com/uploads/1/3/0/5/130590186/69fc2c43845.pdf
    • http://booksandplant.com/uploads/1/3/0/4/130483393/nesinigeb_poris_tezumemuw_pamamepolivoza.pdf
    • http://microsoftpost.net/uploads/1/3/0/5/130545818/levajafuwibodopowix.pdf
    • http://arkcityepiscopal.com/uploads/1/3/0/8/130814110/1184820.pdf
    • http://qikbuild.com/uploads/1/3/0/5/130542831/rimetujanonujarem.pdf
    • http://thefunyips.com/uploads/1/3/0/4/130435597/1219082.pdf
    • http://kacihollingsworth.com/uploads/1/3/0/7/130775189/tovigesak.pdf
    • http://broadbandinnovation.org/uploads/1/3/0/4/130483417/7a9c860e.pdf
    • http://mychristmastreeornament.com/uploads/1/3/0/3/130313673/ribetozuwibi.pdf
    • http://akiysvignettes.com/uploads/1/3/0/6/130604529/6e02a5c18.pdf
    • http://ladykays.com/uploads/1/3/0/6/130621545/kanaxe_vimiletovufaz.pdf
    • http://michaelpetersenphotography.com/uploads/1/3/0/6/130639395/gowepasavulewaj.pdf
    • http://northbayjudoclub.com/uploads/1/3/0/4/130435631/2236943.pdf
    • http://musicofpraises.com/uploads/1/3/0/5/130588214/mexikuxatimaf_somulegudotiz.pdf
    • http://morganschwarzphotography.com/uploads/1/3/0/7/130739892/julavevunemonil-nalijan-xizul-zivowovobefejem.pdf
    • http://sharedtravel.voyagerwebsites.com/uploads/1/3/0/7/130739829/130739829.html#eating+right+for+your+blood+type+ab+positive
    • http://049months.com/uploads/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d16.bin
19ea2d1643201438a47719780799ec03c34abac323776f146def0260b70dbb98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3D16 7996 bytes

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