Malicious PDF — malware analysis report

Static analysis result for SHA-256 c50574834be4f1f1…

MALICIOUS

PDF

51.6 KB Authoring application: SWFTools
MD5: e3f9f79564ad3ee208a4647e4a305b88 SHA-1: 8407c2e9033b2bae6bd11b8bf8009b76093bea93 SHA-256: c50574834be4f1f19a13b1c550c0be5b65af1a32e3921d1affa7230008fee428
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning and directing users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://soaringfish.com/uploads/1/3/0/6/130621473/9bb93289.pdf
    • http://doorrush420.com/uploads/1/3/0/5/130590164/nolal.pdf
    • http://poynorhealthandwellness.com/uploads/1/3/0/7/130740497/6c701ace8102.pdf
    • http://longislandoverheaddoor.net/uploads/1/3/0/7/130776388/luzutakesatuvev_menasiravipik_tevogevetop_zusapudu.pdf
    • http://accesscampdc.com/uploads/1/3/0/5/130588968/6670699.pdf
    • http://pumiquat.com/uploads/1/3/0/2/130287976/moluz-fuvujese-fubitovowiditaj.pdf
    • http://morganadvisory.net/uploads/1/3/0/5/130550660/vidalogabegud.pdf
    • http://careersemploymentdirect.com/uploads/1/3/0/8/130815664/283335.pdf
    • http://intelroom.net/uploads/1/3/0/4/130436521/putato.pdf
    • http://cambridge-cigars.co.uk/uploads/1/3/0/7/130739080/gowanureni-tinanopugufog.pdf
    • http://amhomeinspectionsinc.com/uploads/1/3/0/7/130739196/wobadovokakufokagale.pdf
    • http://nakedroots1.com/uploads/1/3/0/8/130814063/mipujedasep_xutodixag.pdf
    • http://michellesellsidhomes.com/uploads/1/3/0/7/130776611/bakuxij_losufitevudejok_gosuj_pelewiga.pdf
    • http://neighbors4christ.org/uploads/1/3/0/6/130640092/2183560.pdf
    • http://sk8roxy.com/uploads/1/3/0/5/130544672/pexerisikepopijazid.pdf
    • http://janebeddall.com/uploads/1/3/0/7/130776257/6902571.pdf
    • http://patchcreativeunit.org/uploads/1/3/0/5/130544751/pavoxaxosazavisiruj.pdf
    • http://dottis.ch/uploads/1/3/0/7/130776183/7467609.pdf
    • http://powerofproton3.website/uploads/1/3/0/4/130476442/fefijawer-mizusa-xudik.pdf
    • http://relaxitswater.com/uploads/1/3/0/4/130435791/4919694.pdf
    • http://andigeloolaw.com/uploads/1/3/0/5/130544321/fekapasigi-vutob-dudakofox.pdf
    • http://m2d-design-interieur.com/uploads/1/3/0/7/130775876/3757542.pdf
    • http://foothillsbiblefellowship.com/uploads/1/3/0/6/130620731/130620731.html#hamlet+act+4+summary+no+fear

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000509a.bin
ddc6c38a5929b263b215a5b0c7aa8b1a409f146866f06980111f9f21a6232bf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x509A 16036 bytes
font_01_sfnt_off000067f6.bin
2348c1e3a054b21cea118638f392ef8874cb35e08778186a99dfc89bf8e5bb2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67F6 8224 bytes

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