PDF malware analysis — malicious · 3b43813bb06c272b

MALICIOUS

PDF

50.1 KB Created: 2020-10-27 15:53:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 868149a488be5f3c6efa6adf715df809 SHA-1: d450fc6f6d5939235ee7f31f75b9b78134dea491 SHA-256: 3b43813bb06c272bdc4d344096339b16e389ffc1133fab3dbd0e8574870d625a

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.
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://gettraff.ru/123?keyword=bl2+butcher+vs+overcompensator In PDF document text
- https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/fibawubaxavuvabu.pdfIn PDF document text
- https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/857e5ff12b.pdfIn PDF document text
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/debizikirapanas.pdfIn PDF document text
- https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/3640550.pdfIn PDF document text
- https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/cd5771.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368750/normal_5f89210b27500.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388629/normal_5f9722ce5a32c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379230/normal_5f926039c7d1e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389581/normal_5f93168a12d4b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/50da8c46-2cbf-4f0d-82ca-947c0407cc8f/87081012411.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/052a5986-8c67-4d24-88b8-ca40a5edd40c/74503002231.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f286559-010f-4311-9636-7f4469fe60e6/29366311145.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/940cded5-d8df-4ec1-9534-af1b8d626ac1/xakofupegoxifukitifewepaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ee3d793-6b09-4765-90d8-6dc2133e7b58/fovagegax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a56af4ea-f03a-44e8-a415-2321be81e530/2869065712.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8808bf6-191d-4a30-833e-019a142aad55/kobovejazusut.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7f3565c4-e2ca-42de-9c40-d2f6bec685ed/pefadatajokiluluk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/2176/2211/files/dapamovupezokag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7777/7061/files/55394951812.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/1631/3758/files/axial_skeleton_worksheet_answer_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/5449/7443/files/57616727724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3533/6616/files/knots_and_lashings_guide.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000069f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69F7	5552 bytes
SHA-256: `d658d4ce13c638175cb65f6714505c4fae637a9620b384e47bb33d92b3acd378`
`font_01_sfnt_off00007cb8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7CB8	12596 bytes
SHA-256: `901af96273c5736fe5feabbee849b85ca70b4834fdffe87aacb0fee63a18e600`
`font_02_sfnt_off0000a496.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA496	16416 bytes
SHA-256: `e1b2b4688557f53d7bb3b0cae3646c5c298247c7f5722a4b8c84b67043f591e1`

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