Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ea6ab9571a14d23…

MALICIOUS

PDF

76.0 KB Created: 2021-03-27 15:29:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 889cc3a8b2613c109e5ac029f3e3581c SHA-1: 7d50352ec5433163645ebf20539335a79f9bdf1d SHA-256: 7ea6ab9571a14d233a33d578d0778a0842c01f09595f87d6e800e6533a5c5697
74 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and a specific heuristic flags it as a link farm. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the structure and URL patterns suggest an attempt to trick users into downloading further malware, likely via a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/123?utm_term=showbox+2019+android+box PDF link annotation
    • http://ropewelopison.iblogger.org/the_antinomies_of_realism.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476122/normal_5fe79317259c7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497346/normal_5ff0463fd5d24.pdfIn PDF document text
    • http://zeweduzu.iblogger.org/car_cartoon_song.pdfIn PDF document text
    • http://fufivepibagat.iblogger.org/gavukokif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481158/normal_60570aa75b88b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446400/normal_5fcbfd6c4535d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386336/normal_5ffb4b0b24c14.pdfIn PDF document text
    • http://naderuromopuru.22web.org/vitamin_b12_deficiency_nejm.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/0498f7c6-25f9-42ee-b842-e958c4c164cb/how_to_setup_fujitsu_scansnap_s1300i.pdfIn PDF document text
    • http://kepijemimubu.rf.gd/lotoxirixax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f460bb1-0529-48b5-adeb-17975f5545a9/hampton_bay_ceiling_fan_with_light_and_remote.pdfIn PDF document text
    • http://pawutewitozi.epizy.com/gasadekil.pdfIn PDF document text
    • http://fafalibowadavuz.rf.gd/up_mailbox_template.pdfIn PDF document text
    • http://wevedikelu.epizy.com/76857244159.pdfIn PDF document text
    • http://vukefuxi.epizy.com/3957051224.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/vivitar_2.1_stereo_speaker_system.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/dafoli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32eb8e7a-0c85-404a-b10a-af94483480a8/nanazutemugiteja.pdfIn PDF document text
    • https://cb71deac-5427-4a11-aec2-6feec017c243.filesusr.com/ugd/4cd983_79bf5ce673904441a6278640179e9a35.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/guvovigo/android_onesignal_push_notification_example.pdfIn PDF document text
    • http://nivemegasewokem.rf.gd/logical_song_sax_solo.pdfIn PDF document text
    • https://4e33067b-0f13-4bed-bb9c-ea95f768fd7c.filesusr.com/ugd/23924c_e75096ccc4a244718c8551e4dd254b0f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/644affb1-cd33-4f42-9b2f-a20af929357e/bomimapinujigutevoxelotak.pdfIn PDF document text
    • https://s3.amazonaws.com/moduluzuxikari/73043338243.pdfIn PDF document text
    • https://6bfd3344-23d3-4e03-ab7d-00c1c23eecf6.filesusr.com/ugd/be19e1_33cfc13cfe7048e98df1a64d0ac1663f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d0c9b56-e9fb-4482-86fb-a0551c9a9232/30726482878.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_off0000ea80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA80 5588 bytes
SHA-256: 3ee094a07cb005377a7c98d31dafcefcab7f16a0ddbc1fe1df426e98f2351c55
font_01_sfnt_off0000fd92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD92 10368 bytes
SHA-256: 306d4313ef0aaebb2ccb34c47aaa0b97b35de9ca33f8bce7be4e5ba1d855efa4