PDF malware analysis — malicious · 01d38174833cb441

MALICIOUS

PDF

42.3 KB Created: 2020-10-02 00:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 84d719d9fc2cfd76f5d25518bd3ba5d9 SHA-1: 339eb728b52bdd838e7868a9acf6c2a79ce5455d SHA-256: 01d38174833cb441ae45f706b4badba8ae9b1783efab7d2ff001f7ff9272c49b

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://ggtraff.ru/strik?keyword=the+birchbark+house+book+pdf In PDF document text
- https://site-1039002.mozfiles.com/files/1039002/pupupugaratoda.pdfIn PDF document text
- https://site-1036760.mozfiles.com/files/1036760/fakepebemazupixe.pdfIn PDF document text
- https://site-1037203.mozfiles.com/files/1037203/pijolezesozuga.pdfIn PDF document text
- https://site-1036635.mozfiles.com/files/1036635/davudege.pdfIn PDF document text
- https://site-1036656.mozfiles.com/files/1036656/22916898508.pdfIn PDF document text
- https://site-1038437.mozfiles.com/files/1038437/32170818851.pdfIn PDF document text
- http://tabakox.pccaces.org/uploads/1/3/0/7/130739829/266839.pdfIn PDF document text
- http://noren.mossandgreen.net/uploads/1/3/1/3/131384611/6247698.pdfIn PDF document text
- http://tasored.ninthdistrictdems.com/uploads/1/3/2/7/132712011/dubafebagadega.pdfIn PDF document text
- http://fexobis.higgins-sinus.com/uploads/1/3/1/4/131452821/4661749.pdfIn PDF document text
- http://files.essenceofpishon.com/uploads/1/3/0/7/130739621/6194870.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/9198099c-f096-4890-8eea-53124665fb0e/wopuwanokedazakex.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/743a25cc-b05a-48d8-b715-446e1c424589/56032158098.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a379c991-0836-4737-b8a5-228cf1d80c43/46619942913.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fddde9dc-3e34-48e5-a3f4-ef233a7c6afb/mamip.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4980a52e-ae2a-4f29-b208-ff70351a18ef/19181005974.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_off00006845.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6845	5364 bytes
SHA-256: `b0dfbca2f6efe4de4e326570f62dee68ff1cc9e7d68daf036b5f9d65ec9e83bc`
`font_01_sfnt_off00007a71.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A71	9892 bytes
SHA-256: `83074b88ebc7ce2c45f480251e192c6cb653cf76091dcb1b666c7b9483cdb3cc`

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