PDF malware analysis — malicious · 22181c1903ca9f91

MALICIOUS

PDF

76.2 KB Created: 2021-03-09 22:03:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 23c0154b268a14fd03883094e7b26388 SHA-1: 9251efe405541523ee9faac47f4fce9616bff556 SHA-256: 22181c1903ca9f91c5014858fdd3b10a29d5dd89111a4669d8fea97e60eb7821

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains multiple embedded URLs, with a primary focus on a URL that appears to be a lure for merging PDF files. Heuristics indicate this PDF is part of a link farm hosted on disposable domains, a common tactic for phishing or malware distribution. ClamAV detection and ML classification strongly suggest malicious intent, likely to redirect users to a compromised site for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://fokemale.ru/award?keyword=fusionner+les+pdf+en+un+seul PDF link annotation
- https://cdn.sqhk.co/xorilulog/MuWXjfw/xubovefavosutaki.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486220/normal_601c614382a48.pdfIn PDF document text
- http://jikusofare.mywebcommunity.org/15997968212.pdfIn PDF document text
- http://zitirisiz.mywebcommunity.org/87423719573.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387242/normal_5ffb52abe4829.pdfIn PDF document text
- https://cdn.sqhk.co/wixefawoz/f4bZher/cable_diameter_calculator_dc.pdfIn PDF document text
- http://tomolijoponix.mypressonline.com/dewuza.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377388/normal_603a53b4a4089.pdfIn PDF document text
- http://zutatowatipo.mywebcommunity.org/tm_meditation_technique_free.pdfIn PDF document text
- https://cdn.sqhk.co/wubunepan/gggngjU/dragon_city_hack_no_verify.pdfIn PDF document text
- https://tovamegudisolos.weebly.com/uploads/1/3/1/4/131411857/fulatodu.pdfIn PDF document text
- https://ripukalogud.weebly.com/uploads/1/3/4/3/134391837/ae31a5dd3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4458431/normal_600210b8dfd14.pdfIn PDF document text
- https://poniparo.weebly.com/uploads/1/3/4/6/134610273/juzax.pdfIn PDF document text
- https://cdn.sqhk.co/wepugozotap/dXghOvG/nifegifajatamedijufimever.pdfIn PDF document text
- http://gipogup.sportsontheweb.net/carescape_v100_service_manual.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
- http://fuvarijes.atwebpages.com/westinghouse_remote_codes_for_directv.pdfIn PDF document text
- http://vuxebezedigelun.onlinewebshop.net/antecedent_behavior_consequence.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72355312-94b2-4820-a2bf-2c4c21d10dba/89793450260.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ca2fcaf-785b-446f-a187-c1b49d76ee7d/patch_notes_sims_4_july_2020.pdfIn PDF document text
- http://vupaguriwedizid.atwebpages.com/lecciones_aprendidas_accidentes_de_trabajo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2ea0918-aba0-47af-80d8-518bac01df8d/vixijoxasige.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ec90ff2a-9112-4706-8267-13a1cfaa5011/literary_devices_ap_lit.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_off0000e005.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE005	4584 bytes
SHA-256: `0db3ee562354e9fdd15d56cd7a138f10e2bcddf953c5eaee1e6aa21d8a35fdbe`
`font_01_sfnt_off0000ef97.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF97	11160 bytes
SHA-256: `34bb8e0a4f446f9d7aad452cf6ade2fd8eab4c902080356f23177f52318ec176`
`font_02_sfnt_off000113bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x113BC	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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