PDF malware analysis — malicious · ff98a450542a5786

MALICIOUS

PDF

81.3 KB Created: 2021-03-16 09:08:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: d23c73cbe64835c8f0e52097c8cc2a87 SHA-1: cc0a1600b0b3b597963651a8f552c6f43c0d19a2 SHA-256: ff98a450542a57868bd98395b09b54f7e0537994ce79fd01054fe6948abfe637

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document body, though heavily obfuscated, contains references to 'The other side song lyrics the greatest showman' and includes numerous URLs, one of which, 'https://seumenha.ru/strik?utm_term=the+other+side+song+lyrics+the+greatest+showman', is directly associated with a PDF_URI heuristic. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or to download further payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://seumenha.ru/strik?utm_term=the+other+side+song+lyrics+the+greatest+showman PDF link annotation
- https://static.s123-cdn-static.com/uploads/4368962/normal_60083098354d3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481280/normal_5ffb5283867b5.pdfIn PDF document text
- http://kidepokapila.22web.org/ccleaner_completo_crackeado.pdfIn PDF document text
- https://cdn.sqhk.co/jabakujivim/Ru9bhd9/collage_photo_editor.pdfIn PDF document text
- https://cdn.sqhk.co/toxinize/3GjfEij/walmart_canada_black_friday_2019_cell_phone_deals.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402267/normal_6037c91ae30ba.pdfIn PDF document text
- https://cdn.sqhk.co/xovepejegosi/ijAihiY/vizigawotezogudo.pdfIn PDF document text
- http://ratugageju.22web.org/illuminated_manuscript_tamil_meaning.pdfIn PDF document text
- https://cdn.sqhk.co/baxorurifina/Oj48igG/59339115028.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://uploads.strikinglycdn.com/files/85a2b016-9631-42fd-a0f6-2215bb991439/76017466006.pdfIn PDF document text
- http://tedizixulore.epizy.com/kilototep.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f3981d6c-e85c-42af-94d6-e7b501911b16/67630315870.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/522b48c7-6157-4821-b8ee-c90d14e7dd70/purakipafezewe.pdfIn PDF document text
- https://s3.amazonaws.com/tawovojo/pagalworld_movies_bollywood_2017.pdfIn PDF document text
- http://leguliwopubagu.epizy.com/behind_closed_doors_book_ending.pdfIn PDF document text
- https://s3.amazonaws.com/zibenoroduzuw/junovivuzadi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/243f39cc-c493-4c8a-8fbb-da739a17c7d9/36842182162.pdfIn PDF document text
- http://bividit.rf.gd/bivigu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2e38e964-b1d7-4bdd-a91a-ff8358ee40ff/77135684638.pdfIn PDF document text
- https://s3.amazonaws.com/sumesawoxajew/joining_report_for_lecturer_job.pdfIn PDF document text
- http://vifiketufo.epizy.com/gafuwebura.pdfIn PDF document text
- https://s3.amazonaws.com/ravuxudibure/xugegifixamuginuvageja.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_off0000f123.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF123	5284 bytes
SHA-256: `eb48a4717fffa221480ddd293729cf561812bee51dd16549004c9d20f57b485e`
`font_01_sfnt_off00010300.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10300	11380 bytes
SHA-256: `038fe73b773375623940c6d3e24c3061118c7504375b3e77d11ab00ce7babbc2`
`font_02_sfnt_off00012940.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12940	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

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