PDF malware analysis — malicious · 538ca8079b507692

MALICIOUS

PDF

41.9 KB Created: 2020-11-08 04:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 6edcd6d5a0a1bca82ba6fb298cc645bd SHA-1: f2af88315781629b7b92f468ba4656bb7216d4c6 SHA-256: 538ca8079b507692ac7c364e4a54d0be302df8262561fa3e43ddd43804bb876e

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://trafficel.ru/aws?keyword=automotive+marketing+conferences+2019 PDF link annotation
- https://zitidatuviwe.weebly.com/uploads/1/3/4/4/134493200/e368ff74416.pdfIn PDF document text
- https://tirevenisigagum.weebly.com/uploads/1/3/4/5/134500803/riwonami-kupetibibeseji-tafesapo.pdfIn PDF document text
- https://patekakedosejot.weebly.com/uploads/1/3/4/4/134479085/puriwumokerobi.pdfIn PDF document text
- https://baletepo.weebly.com/uploads/1/3/0/7/130776023/vuzitapewimojajupi.pdfIn PDF document text
- https://xikagarema.weebly.com/uploads/1/3/4/4/134489929/21d7a7b33491929.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384037/normal_5f9f174f6d94f.pdfIn PDF document text
- https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/8569232.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/fasanag/vozizerelemedu.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/farm_high_value_targets_destiny_2.pdfIn PDF document text
- https://s3.amazonaws.com/bisegilupuf/civil_war_questions_and_answers.pdfIn PDF document text
- https://s3.amazonaws.com/rotafasaniz/lixifimumilow.pdfIn PDF document text
- https://sebuwisawos.files.wordpress.com/2020/11/fipupojuretis.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_off0000631f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x631F	5764 bytes
SHA-256: `d98c07caac982ab10d8309c12893e7cd6d2defc516ce4036bf4dc6b1c3786138`
`font_01_sfnt_off000076c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76C0	10880 bytes
SHA-256: `d6325c38712c917b60eac7772917ae84557bf3f9ed43917d2f252c892fafaf9a`

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