PDF malware analysis — malicious · 3c190cfd744aa074

MALICIOUS

PDF

41.3 KB Created: 2020-09-30 05:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: 8db1d169c2dd0cd309ded2255d67ade6 SHA-1: 64e995bc01f17baac61ed4495d8041b9bd006afd SHA-256: 3c190cfd744aa0740ff67dc591beeb6699ed4321069d4967a91e476c72d47cb6

124 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 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://cctraff.ru/strik?keyword=the+value+proposition+canvas+pdf In PDF document text
- http://keninipi.hunt-archive.com/uploads/1/3/2/3/132303028/mujabuj-nulujobuxasujaj.pdfIn PDF document text
- http://files.frederickcitybaberuth.com/uploads/1/3/0/7/130739474/3e7887a1c22155.pdfIn PDF document text
- http://files.trinity-medford.org/uploads/1/3/0/8/130815014/xanujuterewena.pdfIn PDF document text
- http://jekadasi.kirbeschnoor.com/uploads/1/3/1/6/131637649/79631ccd1c88fee.pdfIn PDF document text
- http://files.paigebluejacket.com/uploads/1/3/1/6/131607254/bejuboj-mozageximijor.pdfIn PDF document text
- http://files.newnangymnastics.com/uploads/1/3/1/4/131453094/51c0415f46e2f.pdfIn PDF document text
- http://files.charlestontransplanthome.org/uploads/1/3/0/7/130739686/gunanaximemop-ziperewatuni.pdfIn PDF document text
- http://dudefef.cartradio.com/uploads/1/3/2/6/132680813/7627890.pdfIn PDF document text
- https://site-1037135.mozfiles.com/files/1037135/69077252489.pdfIn PDF document text
- https://site-1037848.mozfiles.com/files/1037848/tekiposopabimetuj.pdfIn PDF document text
- https://site-1036791.mozfiles.com/files/1036791/89174957218.pdfIn PDF document text
- https://site-1036651.mozfiles.com/files/1036651/87724067972.pdfIn PDF document text
- https://site-1037048.mozfiles.com/files/1037048/16072947582.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/d2dc0a07-5315-4efb-a515-528c6d468b55/siluvesajisopuji.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0e0b792-44d5-45f1-9842-db292f131b7e/jirafadijom.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5e5c09f-c3bd-4008-959c-8a1b01bc5fd0/tamuwekuxonotad.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_off00006484.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6484	5252 bytes
SHA-256: `83a9564516820b36dd87fe91add7a936eedeba682ada97f1dbf040e2f59b9ec8`
`font_01_sfnt_off0000765c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x765C	9968 bytes
SHA-256: `39418fa31b014c5ce5a488e8855deb5ac0b8ca95eca96f2b18d8f9e8b6f0f072`

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