Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ea56bc6e35ed2dd…

MALICIOUS

PDF

78.7 KB Created: 2021-03-17 22:35:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 55847774e6f2cbcbd1a257620259c9cb SHA-1: 2e865daaf5bc833676d58c78f354b8f49e872e7d SHA-256: 6ea56bc6e35ed2dd63893f6ec976bd6060e6644978efb8921f6378ad9ba33067
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 link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to redirect users to malicious sites, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/aws?utm_term=why+isn%2527t+my+fabric+softener+draining PDF link annotation
    • https://cdn.sqhk.co/kitujesijak/7Siuic5/light_up_deer_antlers_for_dogs.pdfIn PDF document text
    • http://bumaga.bz/what_the_shining_twins_look_like_now96ca4.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/DjgfmwR/segolixowotujolapuduwa.pdfIn PDF document text
    • http://chistohome.moscow/fewumilibod3ty.pdfIn PDF document text
    • https://cdn.sqhk.co/veludewozen/thdZowq/jomibupinekesixod.pdfIn PDF document text
    • http://bluebadgeapproval.com/85129045452nzpte.pdfIn PDF document text
    • https://cdn.sqhk.co/neganobasiwe/hbyiauM/informe_descriptivo_o_expositivo_ejemplo.pdfIn PDF document text
    • http://detonic-ro.website/sharp_registrierkasse_xe-a_102qtc6m.pdfIn PDF document text
    • https://cdn.sqhk.co/devurekon/aNibxcF/tukozalekenulidilum.pdfIn PDF document text
    • https://cdn.sqhk.co/sizebadit/a9ihphc/auto_body_technician_salary_florida.pdfIn PDF document text
    • http://rakomakefike.iblogger.org/dofe_volunteering_assessors_report_example.pdfIn PDF document text
    • https://cdn.sqhk.co/rizuwevize/gjeijig/offline_poker_games_for_windows.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/e84hgji/54835245216.pdfIn PDF document text
    • http://dfwshootersupply.com/93394093177lghwc.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/hchb4sb/muduvanagosuroxiwemapel.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetijesi/P17hdie/callaloo_plant_recipes.pdfIn PDF document text
    • http://buzerudi.22web.org/browning_a500_barrels_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/jgNgjp1/wasofid.pdfIn PDF document text
    • https://cdn.sqhk.co/kataduzoni/jkoiahd/pujovusiwopigego.pdfIn PDF document text
    • http://persequen.com/virtual_dj_mixer_2019rnqvm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zufamiba.rf.gd/tetex.pdfIn PDF document text
    • http://gitisowun.rf.gd/fawibupolixon.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_off0000f730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF730 5692 bytes
SHA-256: 465fb634e583d53b161d49ba568ccb767b61af85d665b489e194649a134ad081
font_01_sfnt_off00010a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A7D 10060 bytes
SHA-256: 2210fa2cd40ddc29fb5b58f139c8503f506aec40228a2e420ecef319f0dd3685

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