PDF malware analysis — malicious · 50ca6495cca943cf

MALICIOUS

PDF

41.4 KB Created: 2020-11-07 19:25:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 93594aff708bf147df2cf3ef0212b88a SHA-1: a7ff4a89a33a7b6df65873bcfe9984087cab3ef2 SHA-256: 50ca6495cca943cfce4f6ac04e9a3bde16a959fd0948d84dcb5e4cb5f38500ed

106 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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://traffset.ru/123?keyword=call+of+war+1942+pc+cheats PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368235/normal_5f879f3b4cf4c.pdfIn PDF document text
- https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/951181.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387699/normal_5f9a88fedf241.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425760/normal_5f977d2cd13eb.pdfIn PDF document text
- https://xebololu.weebly.com/uploads/1/3/4/3/134340913/5803e3d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xejajipix.files.wordpress.com/2020/11/my_maths_answers_gradients_and_intercepts.pdfIn PDF document text
- https://vadazigifexe.files.wordpress.com/2020/11/merozasopegujibe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60c6c613-cd23-4f77-927e-896e7fbb7d70/74377619080.pdfIn PDF document text
- https://s3.amazonaws.com/ribowexulo/loctite_638_msds.pdfIn PDF document text
- https://wixisodek.files.wordpress.com/2020/11/wafewoletujizurekex.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_off000062da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62DA	5528 bytes
SHA-256: `8163d27d19405679d8fb0238b74ad5b7b87db96c7c12302df4458ffcb621add5`
`font_01_sfnt_off000075c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75C1	10536 bytes
SHA-256: `b237b64dc472ea3793aa85bdf739fe4a4595613f6b52f2a337cd2a739bf54f67`

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