PDF malware analysis — malicious · e719ce747a9a62b7

MALICIOUS

PDF

63.4 KB Created: 2021-02-09 13:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: 2b75dcb1a6d7f44c0b7c0c38047cccbf SHA-1: 9f4325ca09991947ffb5e7605e87706b981f5441 SHA-256: e719ce747a9a62b7db003e29f9a23aa6cb5610b7a3b706d173826a8b8d6cbb61

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was detected by ClamAV as Pdf.Phishing.Trojan and an ML classifier flagged it with high confidence. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to 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/wb?keyword=jaspersoft%20reports%20io PDF link annotation
- http://carbags.site/14683998501mi5g4.pdfIn PDF document text
- https://cdn.sqhk.co/kisereta/idMYgWf/valemoxadenekowixanog.pdfIn PDF document text
- https://cdn.sqhk.co/xuxawexa/dnsmjjm/wewevujajijomivevizakep.pdfIn PDF document text
- https://cdn.sqhk.co/fuludasowipu/pgf34MR/republique_bananiere_english_translation.pdfIn PDF document text
- http://apple-fruit.space/bridal_shower_invitation_email_templates63k0p.pdfIn PDF document text
- http://xplaintome.ru/insider_reporting_osc4t5xu.pdfIn PDF document text
- https://cdn.sqhk.co/runusamopit/ihhatOF/funodipigodemololotun.pdfIn PDF document text
- https://cdn.sqhk.co/zidulibu/gepVihv/xorabojoliposomuguxo.pdfIn PDF document text
- http://laura-egorova.ru/2272709900f3lh2.pdfIn PDF document text
- https://cdn.sqhk.co/saseponirifa/V9jbSLT/duxofutilojigajotur.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://rarifefivafew.epizy.com/start_settings_activity_android.pdfIn PDF document text
- https://s3.amazonaws.com/jenisozazewubo/1854767416.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_off0000bd72.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD72	4852 bytes
SHA-256: `c5fc3a5477280cc3cfaeb849cdb8134c736bb21732953f009b37fd6f532a08c5`
`font_01_sfnt_off0000ce04.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE04	10284 bytes
SHA-256: `28c4d5519447e5843ffb47f7e2acf652603803113035766d66f66f8b3e896610`

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