Pdf.Dropper.Agent-8259238-0 — PDF malware analysis

Static analysis result for SHA-256 926612c979883f69…

MALICIOUS

PDF

36.2 KB Created: 2020-05-17 03:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: d26915f317b422cbc52e6cfb4b60d059 SHA-1: b8d7202a7b7480ddea7531ef871cf5dce3f936de SHA-256: 926612c979883f69ae555259d02cf70078617bcc270cdc170f6f4c1927cfeee8
164 Risk Score

Malware Insights

Pdf.Dropper.Agent-8259238-0 · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file, identified as Pdf.Dropper.Agent-8259238-0 by ClamAV, contains a large number of external links, many of which point to other PDF files. The document body text, though partially obfuscated, includes phrases related to 'barcode label printing software free' and references the wkhtmltopdf tool, suggesting a lure to download malicious content. The presence of numerous external links indicates a dropper functionality, aiming to redirect the user to further malicious resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Dropper.Agent-8259238-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8259238-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://lkbmemes.com/uploads/1/3/0/7/130775633/130775633.html#barcode+label+printing+software+free PDF link annotation
    • http://tourbility.com/uploads/1/3/0/5/130551967/2ba02ee97544.pdfIn PDF document text
    • http://entretuyyo.tv/uploads/1/3/0/6/130639173/zapivejetuvi.pdfIn PDF document text
    • http://awake.band/uploads/1/3/1/4/131411197/gesazuni-veminizevojunem-vuzisa-funati.pdfIn PDF document text
    • http://stonesthrows.com/uploads/1/3/1/8/131856222/tesagupeven-rowafog.pdfIn PDF document text
    • http://bsd45.org/uploads/1/3/0/2/130289466/returetimam_wowakar_pixulovolos.pdfIn PDF document text
    • http://denneyheaton.com/uploads/1/3/1/0/131070792/0c2e9493b88.pdfIn PDF document text
    • http://fbcpipecreek.org/uploads/1/3/0/6/130620345/babaz.pdfIn PDF document text
    • http://coconutkarma.org/uploads/1/3/0/7/130776659/buwufusalez.pdfIn PDF document text
    • http://journeyintofreedom.com/uploads/1/3/0/6/130621721/4053804.pdfIn PDF document text
    • http://trolleyhousetearoom.com/uploads/1/3/1/1/131164291/4538780.pdfIn PDF document text
    • http://thecolororacle.com/uploads/1/3/0/5/130542728/89da838266aefd.pdfIn PDF document text
    • http://therustyrasta.ca/uploads/1/3/0/3/130313567/zefabidar-vokaro-gujosadojupot.pdfIn PDF document text
    • http://ok4kids.org/uploads/1/3/0/6/130639662/d5aa3.pdfIn PDF document text
    • http://trsorgiveaways.com/uploads/1/3/0/5/130539091/bizufijifir-debuwonerupas-zefegoj-vupemediwadibu.pdfIn PDF document text
    • http://vanessaseals.com/uploads/1/3/1/3/131384599/rezupuri.pdfIn PDF document text
    • http://heroesofhydrovac.com/uploads/1/3/1/6/131637152/juluwevux.pdfIn PDF document text
    • http://dirafoundation.com/uploads/1/3/0/7/130775288/8428063.pdfIn PDF document text
    • http://mahsupplychainsolutions.com/uploads/1/3/0/4/130478433/8211122.pdfIn PDF document text
    • http://kryzzmo.com/uploads/1/3/1/6/131606132/4534066.pdfIn PDF document text
    • http://dpamedia.net/uploads/1/3/0/7/130776500/12428fbdc3bd91.pdfIn PDF document text
    • http://xavierernstnp.com/uploads/1/3/0/6/130604529/worebirit_vumokipakawaxa_fubog_karumezave.pdfIn PDF document text
    • http://laralavenderoils.com/uploads/1/3/0/6/130621244/d174ad182ba.pdfIn PDF document text
    • http://drmindylais.com/uploads/1/3/1/1/131164448/2662287.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

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Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6195 10380 bytes
SHA-256: 7997f7565512c62b7c3df47509d4bd3d0e6fcb4d2f3269643c249f40dde9c4fc

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