PDF malware analysis — malicious · b794e62d83647fa2

MALICIOUS

PDF

31.5 KB Created: 2020-04-11 07:14:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-12-25

MD5: e378fc6f3c35568bd954046cb3a16834 SHA-1: f8fa982e1f1e7d0180534557d1c1c93fffcdd810 SHA-256: b794e62d83647fa209f034e5f88e8d3088cf0462e23fe1fcfd3ef0925d1aa17a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or a distribution mechanism for further malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external URIs supports this assessment. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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://74-123-77-82.mgwnet.com/uploads/1/3/0/6/130621964/130621964.html#billian+billian+akhan+song++raagsong PDF link annotation
- http://stravaigbooks.com/uploads/1/3/1/4/131453248/addc4f5b5c8.pdfIn PDF document text
- http://bkt-technicalconsulting.com/uploads/1/3/1/3/131383388/855047.pdfIn PDF document text
- http://ebbtidewellnessstudio.com/uploads/1/3/0/4/130488098/zovapeb-topipi.pdfIn PDF document text
- http://dosnorte.com/uploads/1/3/0/2/130287536/tixamujuzaw.pdfIn PDF document text
- http://gratituderatrescue.org/uploads/1/3/1/3/131380258/7727624.pdfIn PDF document text
- http://stphilipstheevangelist.org/uploads/1/3/0/5/130539054/gaxalu.pdfIn PDF document text
- http://curatolaomundsencontracting.com/uploads/1/3/1/4/131437412/faxor.pdfIn PDF document text
- http://sihot.online/uploads/1/3/1/3/131379477/dakamunu_kuxobajuxu_mepoxujozalulun.pdfIn PDF document text
- http://styledbyyannie.com/uploads/1/3/0/8/130813146/kifisisaroxu_watuveniwil.pdfIn PDF document text
- http://preschoolhouse.com/uploads/1/3/1/1/131164538/9589776.pdfIn PDF document text
- http://rollnrock.com/uploads/1/3/1/3/131379045/bulurebulef-weseroxa-zuver-gedoxot.pdfIn PDF document text
- http://hudsonriverbookco.com/uploads/1/3/0/4/130483739/netesenowi_dapuj_rugimili.pdfIn PDF document text
- http://andreabvtranslation.com/uploads/1/3/0/4/130488270/6636ccbded.pdfIn 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000558d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x558D	7244 bytes
SHA-256: `9ac208dd73a07d17a5170b4dc3ed1d9f76ded177b2c69fcd793c3f9d4aa25e2b`

Open this report in the interactive analyzer, or submit your own file for analysis.