Malicious PDF — malware analysis report

Static analysis result for SHA-256 9529f627dfbecae9…

MALICIOUS

PDF

80.7 KB Created: 2021-03-09 04:32:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 12e39edc19735793af3f091cb92b2d63 SHA-1: 9d9e98a3eb57d66309de9cd52f3526c693b21469 SHA-256: 9529f627dfbecae93acafd29f5563be135e811da9e1e507966aad8e50ac12362
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://lozipotod.ru/strik?utm_term=how+to+do+mind+control+techniques PDF link annotation
    • https://cdn.sqhk.co/fekawifen/eggSOha/wavanewenurirasajaboguxor.pdfIn PDF document text
    • https://cdn.sqhk.co/tititafoza/XZihYKp/84761242281.pdfIn PDF document text
    • http://mstmail.space/vifabuteslhigb.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvepiwedo/WgcVgf3/12075171259.pdfIn PDF document text
    • http://santaparker.store/4329169271359a67.pdfIn PDF document text
    • http://epipog.com/sebamo58hua.pdfIn PDF document text
    • http://disconto50.info/spanish_dictionary_imperfect_subjunctive_quizchl7q.pdfIn PDF document text
    • https://cdn.sqhk.co/bisuligiga/cgfgjz5/wixusoloperawibe.pdfIn PDF document text
    • http://copyrightshelpscenters.com/322125573822s3f9.pdfIn PDF document text
    • http://pankreatitum.ru/wedatifowitakodab59hy.pdfIn PDF document text
    • http://indir-kazan.com/1945817424xu1p7.pdfIn PDF document text
    • http://timecodes.net/sapore8y0u4.pdfIn PDF document text
    • http://fringigejy.site/570585969207r3w2.pdfIn PDF document text
    • http://santaparker.store/general_service_agreement_template_doc203hf.pdfIn PDF document text
    • http://stroiline74.ru/sims_3_pets_for_mac_free_downloadchdtu.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/facdf311-bd56-4164-8423-deca007f9615/17267231204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/618630b0-f17c-43da-a777-3b036f382940/4056087085.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffd73cde-ee9a-400e-ba4c-05d4f380d22d/jejutigetuj.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/nhl_winnipeg_jets_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/fisulip.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/89384766095.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/chhota_bheem_free_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea642bdf-8663-4cef-b95a-f013817402c1/jidivifurufaragika.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/020ebad3-2730-4d47-be3f-53fcdce64fab/28599769347.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/split_into_pages_adobe.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.

FilenameKindSourceSize
font_00_sfnt_off0000fe2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE2D 5148 bytes
SHA-256: bb813e0fd09a1e371570c1fd6c8240f540cc7db6b12494a35dcbe605832fc873
font_01_sfnt_off00010f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F8D 10884 bytes
SHA-256: f3b35b0503e70d3f1b57deb2b73b1290ed759400b861de592914eb48b0aea878

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