PDF malware analysis — malicious · ab4c93e8f96da01e

MALICIOUS

PDF

69.7 KB Created: 2021-02-16 07:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25

MD5: e719e4a0b150deb47e2e26e485d44ed6 SHA-1: 83ce54a3dc2b334d2d07fcced77a58304e8b3661 SHA-256: ab4c93e8f96da01e0649009da708e0584617db14c993de929e8d2502ad96a330

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://leonvi.ru/wix?keyword=les+bolstad+golf+course PDF link annotation
- https://cdn.sqhk.co/mojikeke/hgiqgcu/crazy_minecraft_survival_pocket_edition_camo_trolling.pdfIn PDF document text
- https://zojubexetiw.weebly.com/uploads/1/3/5/3/135316795/2248478.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4498882/normal_600d1c3e14fa9.pdfIn PDF document text
- https://rikusinifo.weebly.com/uploads/1/3/4/0/134017093/mejilewoduw-lelidozozebuxu-sasane.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415045/normal_5ffc8485d4895.pdfIn PDF document text
- http://gufubugab.22web.org/google_chrome_dev_version.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485813/normal_60033d03dc05f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://migotebixum.rf.gd/74051859068.pdfIn PDF document text
- https://s3.amazonaws.com/mokamoba/ruxasuzifitewofobekuz.pdfIn PDF document text
- https://s3.amazonaws.com/geraromu/bush_baby_facts_and_information.pdfIn PDF document text
- https://s3.amazonaws.com/bipovoromoj/janizoseje.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_off0000d0c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0C6	5268 bytes
SHA-256: `b1b1a3bc3a28eee4646b0f367cca6933cc86ff7b8518ff5193b7641b00343527`
`font_01_sfnt_off0000e2c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2C4	12048 bytes
SHA-256: `1dda099874c67342bea979b0255a4db475da45ab997fba268a6444711c8bcaae`

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