Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c7abb4e9ce977f…

MALICIOUS

PDF

74.9 KB Created: 2021-03-01 19:51:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: ab7d660f5991f2ccda20707f1162fb58 SHA-1: 5894d29445293d0193cec567f22ad57c6fc34ec2 SHA-256: d0c7abb4e9ce977ffaa461ae9fe9a06b39d52344f22cc3cd96d32cf07d92bad0
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are part of a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

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://fokemale.ru/strik?utm_term=how+to+unlock+panasonic+air+conditioner+remote+control PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4494433/normal_5ff9df3aa4210.pdfIn PDF document text
    • https://vumusubivabup.weebly.com/uploads/1/3/4/4/134491869/7587487.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443809/normal_60262bb94c534.pdfIn PDF document text
    • http://orbitan.fun/catch_me_if_you_can_watch_free_online_moviesejfk.pdfIn PDF document text
    • http://kreativoblako.com/nieve_de_garrafa_de_vainilla_recetaa7ff0.pdfIn PDF document text
    • http://carluxepaint.site/vusunuduzunejenemimedefuly0mny.pdfIn PDF document text
    • http://kumululurug.scienceontheweb.net/78073691789.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424010/normal_600dcfb830bf9.pdfIn PDF document text
    • https://wumudirega.weebly.com/uploads/1/3/4/5/134515906/adf08094c.pdfIn PDF document text
    • http://moreprodukti.com/download_fb_video_apkdfewi.pdfIn PDF document text
    • http://spainwow.pro/he_will_be_alright_meaningwve8v.pdfIn PDF document text
    • http://mitimewigupito.mypressonline.com/61223659297.pdfIn PDF document text
    • https://xigefazevape.weebly.com/uploads/1/3/4/6/134632801/4663911.pdfIn PDF document text
    • http://replyua.site/468775574531k704.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445341/normal_603a78d778d7a.pdfIn PDF document text
    • http://bigpleasure.ru/individual_professional_development_plan_for_teachers_examples_in_the_philippinesynpox.pdfIn PDF document text
    • http://shothard.site/65991493324kcvbx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e82e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82E 5336 bytes
SHA-256: 101d8a7181d41cb49b7e859676f8fa5d5668ee889bd5252ea34d87a645df6d9a
font_01_sfnt_off0000fa4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4D 10444 bytes
SHA-256: b927c01aa406eb86f2fcce697973d13842a245fa30c2df002a9dc1b65a6c88c1

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