PDF malware analysis — malicious · 92064bb3bb316e28

MALICIOUS

PDF

80.4 KB Created: 2021-03-24 18:33:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10

MD5: ea248810e2f6514405c955171e7d090f SHA-1: 52c8d683ac24a3255995cb6d90fbb373a9b4dc8c SHA-256: 92064bb3bb316e28fcfd222cc2df67cebb4d0b02933e61977112cd78ccad514f

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with one specifically appearing as a search result for "baal veer episode 1100 free", likely intended as a lure. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates a link farm on disposable hosting, and ClamAV detection as Pdf.Phishing.Trojan suggests a phishing or malicious intent. No scripts were extracted from this sample.

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://vilenefex.ru/123?utm_term=baal+veer+episode+1100+free PDF link annotation
- https://cdn-cms.f-static.net/uploads/4416316/normal_600fe411cfab5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366009/normal_60392b5eb06a1.pdfIn PDF document text
- http://lezigovedavide.getenjoyment.net/zujubemog.pdfIn PDF document text
- http://numulul.mygamesonline.org/master_forge_grill_model_l3218.pdfIn PDF document text
- http://fodefon.getenjoyment.net/36713323913.pdfIn PDF document text
- http://magexaxajatadog.getenjoyment.net/deguzufixaxazer.pdfIn PDF document text
- http://punavuvipufov.sportsontheweb.net/metro_2033_chapter_4_outpost_walkthrough.pdfIn PDF document text
- http://lajodibibodi.getenjoyment.net/tanozewetatazirazin.pdfIn PDF document text
- http://sopugepibimel.mypressonline.com/12130384136.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4406170/normal_5fdeb07ee17aa.pdfIn PDF document text
- http://tofoxewesaxizuz.mywebcommunity.org/11565115729.pdfIn PDF document text
- http://xatovapotogu.mywebcommunity.org/nudowanobowipinuga.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://luvetux.myartsonline.com/california_yellow_immunization_card.pdfIn PDF document text
- http://jorasixu.myartsonline.com/57176503848.pdfIn PDF document text
- https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_3e44b189571046629f9025ad2f33be3c.pdf?index=trueIn PDF document text
- https://0f7a2101-273c-4f7f-b1fd-079d1ad923c1.filesusr.com/ugd/a7ea6f_f8971687ac5741858364c6b59ddfcb61.pdf?index=trueIn PDF document text
- https://9e0ebcba-7e04-41ac-afc6-cfc574163c15.filesusr.com/ugd/6725b5_d138140d667748f6beb1191328ec6062.pdf?index=trueIn PDF document text
- https://86908e24-11f3-43a1-9346-bf531f45ee0b.filesusr.com/ugd/97493d_f81574fabc7b4c3aa0e03ce771eb23d3.pdf?index=trueIn PDF document text
- https://66f9c2bc-82a6-463d-9ccd-9c94d3d8805e.filesusr.com/ugd/b361c6_b987f7d066924c2bab9b34f91d4a809e.pdf?index=trueIn PDF document text
- http://palelezugob.onlinewebshop.net/87280397929.pdfIn PDF document text
- https://cf62593c-3f62-494e-9ef9-3c2a63ead7d7.filesusr.com/ugd/93dae2_b7d87f19101046e482a74384e67cee42.pdf?index=trueIn PDF document text
- https://167c2301-eccc-4e3a-a609-38a4f17b9bf8.filesusr.com/ugd/b1dabf_9749216e78bd45a9a8aa528bc9067b95.pdf?index=trueIn 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_off0000f194.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF194	4940 bytes
SHA-256: `51b271cfa7bed90e1a910094a4c45e2bb1092f60edb70f0b71bc9bee5da2db99`
`font_01_sfnt_off00010274.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10274	10384 bytes
SHA-256: `30689bb4b34abeb7a9222859e0a5abdb704417c622c169d715df3cadf3d3798b`
`font_02_sfnt_off000125e4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x125E4	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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