Malicious PDF — malware analysis report

Static analysis result for SHA-256 e61b302574e4c0eb…

MALICIOUS

PDF

36.7 KB Created: 2020-05-17 03:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-07
MD5: e83eb9b69b83d42bbcdf590d301cd8a0 SHA-1: 7fac33471be14e5ecf4750e525bd15bd07837152 SHA-256: e61b302574e4c0eb65b75cbf65f477a300d2b31bad386e9b4909efa5f2cb33f6
104 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files on various domains, indicating a link farm or redirection scheme. The document body mentions 'Cricket tournament banner templates' and includes a call-to-action phrase, suggesting a lure to entice users to click on these links. The presence of numerous external links, particularly those structured as PDF files, strongly suggests a malicious intent to redirect users to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 5

  • 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://perillianconsulting.com/uploads/1/3/0/2/130272552/130272552.html#cricket+tournament+banner+templates PDF link annotation
    • http://wild-violet-ayurveda.com/uploads/1/3/0/2/130288753/2553178.pdfIn PDF document text
    • http://mymacmarketing.com/uploads/1/3/0/2/130272586/mazanoke.pdfIn PDF document text
    • http://institutefortherapeutictouch.com/uploads/1/3/1/1/131164054/kubedabo_jaxoxerifolun_fibofot_lefevupuxototo.pdfIn PDF document text
    • http://aidactionkorea.org/uploads/1/3/0/3/130312913/selinirolek-zivixitexufeni.pdfIn PDF document text
    • http://jeanekring.com/uploads/1/3/0/5/130541133/segijuzofusot-sukavokex-midibikogivofam-pofumuribeguko.pdfIn PDF document text
    • http://harmonyhcm.com/uploads/1/3/1/3/131379671/3634830.pdfIn PDF document text
    • http://datanetguatemala.com/uploads/1/3/0/8/130814976/722d098f.pdfIn PDF document text
    • http://supremecupcakez.com/uploads/1/3/0/9/130969824/515483.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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6526 10136 bytes
SHA-256: bc444f38a342df42be406dca91ce29808b0e188da39cad97b57cc2886ad5bcf0