PDF malware analysis — malicious · 62b4df9c98aba2b9

MALICIOUS

PDF

46.2 KB Created: 2020-10-21 12:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: 3067f887a56e81fe6a789ea5ae9e2e35 SHA-1: 6cc833d70da5912929717ac758800a7e36e7d9ed SHA-256: 62b4df9c98aba2b9787c04243cdef2e7952c8c753b6d8f3f6e81fe3e502b65d3

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://cctraff.ru/pify?keyword=mesa+rectoverb+25+manual In PDF document text
- https://cdn-cms.f-static.net/uploads/4389394/normal_5f8fdd91cfe1c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366989/normal_5f8802d4a6efb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370063/normal_5f8d014a156df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367961/normal_5f8905e7aa505.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391915/normal_5f8e44fcd307f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366337/normal_5f875a2f12d09.pdfIn PDF document text
- https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/xemipir_xepiwopajo_lofijewuv.pdfIn PDF document text
- https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/54f4648b.pdfIn PDF document text
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rezareludufiven-voxodopi.pdfIn PDF document text
- https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/raguvejexaxep_ratalilofo_xufibadam_pazerarop.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/zetare/45909031561.pdfIn PDF document text
- https://s3.amazonaws.com/felasorarabipis/36183163744.pdfIn PDF document text
- https://s3.amazonaws.com/sugaguxagu/awesome_kyiv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ecef873c-203c-4f89-9601-f2aff23b976f/rutijoxurigojuvatilo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5df513c4-c86e-4cb0-bd36-b1aa5d7bae90/94555225078.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/079d6f5e-67a2-4fa5-9786-3fc611c066c2/danganronpa_2_animation.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/47b31841-4e9b-4e7f-950e-93d8cd7770ee/kupik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/7888/4759/files/nefijadowiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0478/3203/9583/files/nuzudanug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6328/6691/files/97848742668.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3318/8762/files/50637985859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/7195/7911/files/guardians_of_the_galaxy_art_book.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_off00006872.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6872	5240 bytes
SHA-256: `30653cb59b157031d6bb9d9b01ed399eccf70868c4fbea094b065c111715cbda`
`font_01_sfnt_off00007a32.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A32	10252 bytes
SHA-256: `91cba5c47c5b5caa0bbf7656c4a4c9c0ad444819669a6cee0a424e4dc5071ced`
`font_02_sfnt_off00009d5a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9D5A	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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