PDF malware analysis — malicious · 179028d8ee5ebe63

MALICIOUS

PDF

42.4 KB Created: 2020-11-04 07:45:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: 24501a1a59b01eb3c330799c4be536f0 SHA-1: 0220e9ce2daf5ee01ba79621feb316226208eafe SHA-256: 179028d8ee5ebe638f795222e5a52aa802bd00b6a0eeb267edae09e52c1bcbd1

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is likely intended to lead the user to a phishing or malware distribution site.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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://ggtraff.ru/strik?keyword=rifts+map+of+north+america In PDF document text
- https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/zewabejera.pdfIn PDF document text
- https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/501737.pdfIn PDF document text
- https://gawubodukajine.weebly.com/uploads/1/3/0/9/130969599/papoj-sigemosetinip-wigikolukunugu-liwux.pdfIn PDF document text
- https://rizowexerezo.weebly.com/uploads/1/3/4/2/134265486/b77d29cdaefe.pdfIn PDF document text
- https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/vururozejetuko.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/niporofez/banking_financial_terminology.pdfIn PDF document text
- https://s3.amazonaws.com/wiwamoxamo/words_beginning_with_gem.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/45254081530.pdfIn PDF document text
- https://s3.amazonaws.com/purawuma/57284159010.pdfIn PDF document text
- https://s3.amazonaws.com/dalava/the_final_warning.pdfIn PDF document text
- https://s3.amazonaws.com/pazovugal/gisitikarisopaxabenem.pdfIn PDF document text
- https://s3.amazonaws.com/ligole/19905018092.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_off000067a6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67A6	5232 bytes
SHA-256: `5fbbff528b539184cf7ad9763f171fe1ae1786773e72ef2f268a94ef2d22dc93`
`font_01_sfnt_off0000794e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x794E	10632 bytes
SHA-256: `4d0f867edab90af7d63257eada297cd29a4eacf3dfd78c8ecdd74fdfc30b5d58`

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