Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbd3fc04d859f464…

MALICIOUS

PDF

81.9 KB Created: 2021-03-11 18:46:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: b9eb89c07ecb63d98e89727bd5713d03 SHA-1: e510deabe66e14da2afba1a0a5016cf8a03114a4 SHA-256: fbd3fc04d859f464cfae98a87dffb40bf66666e457d212fb01dc88994aa8e74d
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were extracted, the document's structure and embedded URLs suggest it's designed to redirect users to malicious 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://botokaw.ru/wix?keyword=parque+de+diversiones+en+ohio PDF link annotation
    • http://jilet1.club/moviebox_tv_show_2020vikld.pdfIn PDF document text
    • https://malolikekex.weebly.com/uploads/1/3/4/7/134718462/bifofagegogoz.pdfIn PDF document text
    • http://mikrotikwizard.com/sorufuka53bh1.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/dTsMghM/karvy_mutual_fund_sip_stop_form.pdfIn PDF document text
    • https://cdn.sqhk.co/wasefago/gZKBLtA/make_cv_template_free.pdfIn PDF document text
    • https://cdn.sqhk.co/zifuvifiweva/XheZ7je/jimdo_creator_app_download.pdfIn PDF document text
    • https://monogelifanalo.weebly.com/uploads/1/3/5/3/135387447/xasudokutib.pdfIn PDF document text
    • http://buvinivu.iblogger.org/cert_pem_format_example.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/jujojomojemiz/lefelaruroforinowiva.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/kick_the_buddy_free_games.pdfIn PDF document text
    • http://faturorevilovog.epizy.com/how_to_unlock_hill-rom_bed_controls.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/96616823932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b83ffbf6-a14c-40c1-805a-b29045abf819/garmin_epix_price.pdfIn PDF document text
    • http://nubomozakazir.epizy.com/juxabipup.pdfIn PDF document text
    • http://wonetone.rf.gd/manual_mi_airdots_portugues.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d260247-dc0a-4009-94e0-fc3466c22036/libro_de_historia_universal_contemporanea_telebachillerato_comunitario.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3fb7298-92fd-4245-aedd-eb457a8be827/the_other_side_of_paradise_lyrics_1_hour.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/445e36ed-d2e6-422a-bf98-6715293396f1/72023578072.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/angular_bootstrap_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/single_parents_mingle_apk.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_off000101e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E5 5068 bytes
SHA-256: 0bca355ce61f149924a211ac7b8f4bd5c65bff2c0d1953a4004f8cc675f928c7
font_01_sfnt_off0001131c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1131C 11524 bytes
SHA-256: 1264917fc328c4d94053544bce59d38a9a94a3af0e76546eeeb3c0df7c86872c

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