PDF malware analysis — malicious · 66f5e5b4f1debd34

MALICIOUS

PDF

49.0 KB Created: 2020-10-13 21:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: 783df072d7d08dd6b25d95f506f2ae29 SHA-1: af93382308082718f06e864e62babe1498ce734c SHA-256: 66f5e5b4f1debd34c45d621c67af9fde472292d3d27b83b7b3cc99793ee0a7b7

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=introduction+to+intermediary+metabolism+pdf In PDF document text
- https://site-1039188.mozfiles.com/files/1039188/pegudegunitabamowejasu.pdfIn PDF document text
- https://site-1037833.mozfiles.com/files/1037833/jogesozifakejalevedof.pdfIn PDF document text
- https://site-1040319.mozfiles.com/files/1040319/1890675343.pdfIn PDF document text
- https://site-1039308.mozfiles.com/files/1039308/mixunagoloxufowor.pdfIn PDF document text
- https://site-1038714.mozfiles.com/files/1038714/93261221735.pdfIn PDF document text
- https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/tidivobinimigip-banez-batipafon.pdfIn PDF document text
- https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/40ddfa4d7f4e3e.pdfIn PDF document text
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/a8401ec7a9859.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/ecd7a70c-bd56-4127-a29f-49c7c97600ef/557629292.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f1351bc7-c329-4309-970c-0cf943c1c351/23100529740.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9c1c8931-d931-4920-922f-13e62e7cfb20/penupulik.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f5b14174-e55c-4a97-b9dd-7dfb7ba74043/dikerile.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8becc57b-234c-48f5-b7c5-13d830a10a8f/feseliduri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7727/8627/files/jomedegumaxalakakejurezor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3025/6536/files/whats_the_brand_level_6.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9926/8003/files/46490231999.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_off0000802f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x802F	5480 bytes
SHA-256: `62b3d871e8d7425620354b8119b262b65afad018392b1f5ce0dd989a312dc846`
`font_01_sfnt_off000092b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92B4	10552 bytes
SHA-256: `1b0e67c0b89ad11bf96685ef083e440353a179c9182c65c318fcc449767306cb`

Open this report in the interactive analyzer, or submit your own file for analysis.