PDF malware analysis — malicious · cc0ced74bee2abca

MALICIOUS

PDF

80.4 KB Created: 2021-06-01 13:28:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 862ab40aeab4c301f514b58813f4b438 SHA-1: 87039100d9315afa4005c7d544900340a1c9ef59 SHA-256: cc0ced74bee2abca85e67c2d6b7e44c6f85c63326017bb73f5db610bcf83fc91

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. The document contains an embedded URI pointing to 'https://resalured.ru/123?utm_term=broadlink+sc1+manual', which is likely a phishing or malware distribution site. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further suggests a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://resalured.ru/123?utm_term=broadlink+sc1+manual PDF link annotation
- https://cdn-cms.f-static.net/uploads/4423155/normal_5fda8b3e287de.pdfIn PDF document text
- https://regaxitorosujuj.weebly.com/uploads/1/3/7/5/137518825/xugotajul_bivepoxefijupa.pdfIn PDF document text
- https://fitarobut.weebly.com/uploads/1/3/4/6/134690469/resan.pdfIn PDF document text
- https://zixojubagever.weebly.com/uploads/1/3/4/6/134613499/bodogonaloge.pdfIn PDF document text
- https://romudemul.weebly.com/uploads/1/3/4/8/134886817/suganunarina.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453118/normal_5ffeb70b6f328.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481834/normal_604fd9c80e95c.pdfIn PDF document text
- https://tetejinuditobig.weebly.com/uploads/1/3/5/9/135973847/sapotixavatovok-puvogebol-fewoxu.pdfIn PDF document text
- https://jijubukaxujofi.weebly.com/uploads/1/3/4/8/134892288/fivalawumu_nerixore.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460981/normal_600e0c9fb2f08.pdfIn PDF document text
- https://lixabexuraluna.weebly.com/uploads/1/3/4/2/134234562/7067866.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/1c7163bb-30ae-474a-a12c-25bda3b71765/diccionario_de_filosofia_jose_ferrater_mora_descargar_gratis.pdfIn PDF document text
- http://zexowisam.pbworks.com/w/file/fetch/144427644/jedeg.pdfIn PDF document text
- http://wiwedano.pbworks.com/f/wigofataxunulisagatedavux.pdfIn PDF document text
- http://poxanoralanu.pbworks.com/w/file/fetch/144423051/how_to_wash_my_milwaukee_heated_hoodie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f18f7b20-d3dd-4012-b9af-d20f992ae397/chetan_bhagat_book_one_night_at_the_call_center_free_download.pdfIn PDF document text
- http://vatojorisa.pbworks.com/w/file/fetch/144437838/93091358059.pdfIn PDF document text
- http://niluputevi.pbworks.com/f/how_to_load_hyper_tough_heavy_duty_staple_gun.pdfIn PDF document text
- http://neruwuk.pbworks.com/f/printable_calendar_2021_may_through_august.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_off0000eaa2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEAA2	5248 bytes
SHA-256: `79fb93feffd832dd0ead78ef6c7b2e95d441ed195453bd851a4eac0173f715e4`
`font_01_sfnt_off0000fc62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC62	1676 bytes
SHA-256: `0a9ddd37ff84b6c9965ae7bc231cd7d4db4df336f63010023498509ff542b997`
`font_02_sfnt_off000104b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x104B1	14616 bytes
SHA-256: `2ee2d1e803df405d57947e2d902b961c86721d7addf8e66dda4745952a1de745`

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