PDF malware analysis — malicious · 858466177df45120

MALICIOUS

PDF

41.3 KB Created: 2020-11-07 23:38:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: b8bc228c381d068243dd0ac5422eda9d SHA-1: 43790e3173de99f2c40c6f1177e4d0b19094d16a SHA-256: 858466177df451202184fe989ba8573c8478a4b3de132be049b590edd6e6869c

66 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://trafffe.ru/aws?keyword=know+why+you+believe+paul+little+pdf PDF link annotation
- https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/f49fafc.pdfIn PDF document text
- https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.pdfIn PDF document text
- https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/963222.pdfIn PDF document text
- https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/fifoxagijor.pdfIn PDF document text
- https://rapokivagifo.weebly.com/uploads/1/3/4/3/134338569/sekivedot.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/xapidajovaji/berliner_platz_3_neu_glossar_griechisch.pdfIn PDF document text
- https://pupirod.files.wordpress.com/2020/11/sagob.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c9e2c443-573d-46f9-b8d5-cf54f1d6d2e1/89969374474.pdfIn PDF document text
- https://s3.amazonaws.com/kavitokolezub/veserivelu.pdfIn PDF document text
- https://s3.amazonaws.com/widuxade/how_to_ensure_validity_in_qualitative_research.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000556e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x556E	5100 bytes
SHA-256: `0f6288aca2636e5b682114bf2526f3c75f2803a0f1156d17bd1fa135e16b057a`
`font_01_sfnt_off000066d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66D9	10532 bytes
SHA-256: `3b5caf7bbf7c9d789a08b89c04f036fbd27c98882acacf0f8c8515cefbe19c8f`
`font_02_sfnt_off00008a9f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A9F	4324 bytes
SHA-256: `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`

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