PDF malware analysis — malicious · e0cdb4d962a78eca

MALICIOUS

PDF

51.0 KB Created: 2020-10-28 16:07:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: d44b5782086a2d02654682101591ac0a SHA-1: 4a6591da0735eee45ed70deb0d8f7c322473826a SHA-256: e0cdb4d962a78ecaa41273610e7d742523c6f42bcb4b3d670c16a0b04a83f7f4

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://ttraff.me/123?keyword=periodic+table+set+of+properties+repeats+from In PDF document text
- https://subulutug.weebly.com/uploads/1/3/4/3/134349811/lataxu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405904/normal_5f9974f23154f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403818/normal_5f95b59b657cf.pdfIn PDF document text
- https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/59083b6ef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386836/normal_5f915f5a297b2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367297/normal_5f8e7216e5255.pdfIn PDF document text
- https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/silewimufejuvag_gasodederefipo.pdfIn PDF document text
- https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/nezupamomuzav.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384159/normal_5f96bc3b1690a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381964/normal_5f8f3d865b811.pdfIn PDF document text
- https://nafuxiba.weebly.com/uploads/1/3/4/0/134097784/gulufuxafadetul_jigemus_fizuwewalotadef_fanipesu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387040/normal_5f946599627b4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368494/normal_5f93c04ee33db.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366311/normal_5f873fba2de86.pdfIn PDF document text
- https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/tobedumala.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371003/normal_5f887f896fb49.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369638/normal_5f8fee94e4409.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369793/normal_5f8fce090a18c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369655/normal_5f968c0577023.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://cdn.shopify.com/s/files/1/0502/1188/1136/files/datukuvanap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/3066/1278/files/28893386353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/4062/2760/files/public_administration_book_for_ias.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0485/0116/2146/files/29121386566.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/8177/5287/files/hidden_call_recorder_android_apk.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_off00007a56.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A56	5124 bytes
SHA-256: `ad930c51aaa0053c3eaf062852110e412446ac378eb11b81169167f468541414`
`font_01_sfnt_off00008bb8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BB8	10888 bytes
SHA-256: `72b06f6a7cbdcdc8d14bb861a68d7035fa6d2f1a9ea4308ecd1956ca44dbec6c`
`font_02_sfnt_off0000b055.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB055	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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