Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea4d4a45f56c8b20…

MALICIOUS

PDF

71.1 KB Created: 2021-03-18 08:24:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c54924fbab25686a9b8c6677c0aded0a SHA-1: e8da35fafebf596126ae5409eef7c75ae7fa95d3 SHA-256: ea4d4a45f56c8b20dff9392c398c24ef2872b20cb687c6527b6d6bd53379ce1c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • 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://fokemale.ru/award?keyword=bsn+sports+logo+pdf PDF link annotation
    • https://xefujalebide.weebly.com/uploads/1/3/2/6/132681694/bevofemeg.pdfIn PDF document text
    • https://botabire.weebly.com/uploads/1/3/4/6/134629411/xusakipujarapu.pdfIn PDF document text
    • http://fobativ.mywebcommunity.org/fibugonogu.pdfIn PDF document text
    • http://melidagerukebel.sportsontheweb.net/human_anatomy_urinary_system.pdfIn PDF document text
    • https://xowivana.weebly.com/uploads/1/3/0/8/130813667/a23f86367d6f66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420617/normal_5fdd8fdd3e050.pdfIn PDF document text
    • https://modudipagif.weebly.com/uploads/1/3/4/6/134688888/5057127.pdfIn PDF document text
    • http://purunuza.iblogger.org/vexat.pdfIn PDF document text
    • https://soregoba.weebly.com/uploads/1/3/0/7/130739918/ziludinogiti.pdfIn PDF document text
    • http://sevelorovuwo.66ghz.com/bundesliga_18_19_spielplan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412763/normal_601bb3c908a6a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://podugidak.epizy.com/rupuni.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/advanced_vocabulary_skills_5th_edition_answer_key.pdfIn PDF document text
    • http://viladitotaxuf.epizy.com/margin_call_full_movie_hd.pdfIn PDF document text
    • http://gobonolamuwit.epizy.com/ankle_fracture_rehab_exercises.pdfIn PDF document text
    • http://vivetusukuv.onlinewebshop.net/61815937398.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/on_the_road_jack_kerouac.pdfIn PDF document text
    • http://feneluveje.epizy.com/22484367363.pdfIn PDF document text
    • http://fepetixapokurob.myartsonline.com/dulces_mentiras_amargas_verdades_descargar_gratis.pdfIn PDF document text
    • http://zabesawafusoxa.rf.gd/86358989486.pdfIn PDF document text
    • http://wesovipimamino.epizy.com/95196423411.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_off0000d69f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69F 5048 bytes
SHA-256: 10f7cc880e31dbd47227c3461126d584a865890c41f535818aa30d6561d455cb
font_01_sfnt_off0000e7e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E3 11100 bytes
SHA-256: 40258dda8b670bd44cda0634d380550af084675376cf0734e8d2cf703e4048f7