Malicious PDF — malware analysis report

Static analysis result for SHA-256 569f692e860b01a4…

MALICIOUS

PDF

78.1 KB Created: 2021-02-25 04:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 7e1b5a63bb29a0d7bad5a7d18facf35e SHA-1: 4934f96c57edc13edc574e3978b918223c1eb9c5 SHA-256: 569f692e860b01a49458203705fd5375e39873cf13e5996761fea56c376c5a8e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the presence of external URIs and the overall structure strongly suggest the document is designed to redirect users to malicious sites.

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://maypoin.ru/123?utm_term=multiplication+word+problems+grade+4+common+core PDF link annotation
    • https://cdn.sqhk.co/kigaratak/jinIibF/45108813447.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/88848118354.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450145/normal_5ff7f67127dca.pdfIn PDF document text
    • http://kopuvimu.scienceontheweb.net/oracle_11g_sql_developer.bat_not_found.pdfIn PDF document text
    • http://nesobaka9.xyz/soturebupuludewoxogp6qt.pdfIn PDF document text
    • http://tehnotop.store/tenvis_camera_setup_passwordp3iff.pdfIn PDF document text
    • http://help-service-support.com/best_cardio_machine_to_build_leg_muscleinuca.pdfIn PDF document text
    • http://generalmassage.online/sukujrywol.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/tihojej/blossom_blast_saga_online_game.pdfIn PDF document text
    • https://cdn.sqhk.co/leloxoreje/oghjQje/wijipamalaritakereju.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/tous_les_courants_philosophiquesms0ik.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/how_to_get_rich_felix_dennis_po_polsku.pdfIn PDF document text
    • https://cdn.sqhk.co/pulisamog/Iighbbp/ea_sports_ufc_apk.pdfIn PDF document text
    • http://bighome.space/3d_video_editor_apkg0pm7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/97046099005.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/95307942950.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/read_theory_analogies_3_level_8_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/dozopitonagafobigejoju.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_off0000f2d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D4 5720 bytes
SHA-256: 6c67c3e2d812e2caf25c4a63d6004513f899e6f35d505ac3fd8c9b8e130734a0
font_01_sfnt_off00010650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10650 10668 bytes
SHA-256: f63e02c1ed4ed32b29a3edd08ac477a649e588c85ba788552466089675e2123f

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