PDF malware analysis — malicious · 489ff56d1b9cbc79

MALICIOUS

PDF

73.7 KB Created: 2021-02-14 08:41:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17

MD5: f173e9e67d1c6ec3fc37117f9e62d305 SHA-1: 05b01c007ed179c66091318dade6e4377996af6c SHA-256: 489ff56d1b9cbc797bac9499750891fb514f0c2fce5933a54417dcbc4159bb80

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit vulnerabilities or trick the user into visiting a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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 https://jacksth.ru/aws?utm_term=love+is+waste+of+time+images PDF link annotation
- https://bimuwosexiwo.weebly.com/uploads/1/3/1/1/131164043/xuges_mimenejunapufo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390328/normal_601c7024d0e3c.pdfIn PDF document text
- https://cdn.sqhk.co/kerametunal/djcvNjg/mapeguwoguduja.pdfIn PDF document text
- http://gufutaca5.xyz/interchange_3d_mapmlszk.pdfIn PDF document text
- https://cdn.sqhk.co/muzorefu/lxhhgjU/vifitinirasexotadatopozu.pdfIn PDF document text
- http://tiktokcopyrighthelpteam.com/istation_reading_level_correlation_chart_spanish5t67t.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4496816/normal_5fdbde5060aeb.pdfIn PDF document text
- https://cdn.sqhk.co/fijajiles/fH0jbg0/floor_tiles_for_kitchen_near_me.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/sojebelevenex/zirufobonoluxepesefupab.pdfIn PDF document text
- https://s3.amazonaws.com/kakef/81388862982.pdfIn PDF document text
- http://dejupaxifitat.rf.gd/tomife.pdfIn PDF document text
- https://s3.amazonaws.com/zabejuvijolu/kuguritusikamip.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
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e527.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE527	5052 bytes
SHA-256: `ffeb661ee93e4f2bedc6b8757abda94f1c64ac65ab91e56291e3c22ea2da81a9`
`font_01_sfnt_off0000f66c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF66C	10440 bytes
SHA-256: `e716876194b9013305e6c4643a1e9327ac79577be8de8a9f42d3c83efec52186`

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