Malicious PDF — malware analysis report

Static analysis result for SHA-256 55fdb5b072b14de9…

MALICIOUS

PDF

69.1 KB Created: 2021-03-21 03:08:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 74f146af6db0540e565fd0a912a82165 SHA-1: b7d2ce1301f64ce952145804726077ee126dda05 SHA-256: 55fdb5b072b14de9e3de993380cb5fc5dfbc24d96aa69f7279a2698cf6532918
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a URL designed to look like a search result for a legal document. This is a common lure for phishing attacks, aiming to trick users into downloading further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/award?keyword=calcutta+high+court+calendar+2020+pdf PDF link annotation
    • http://vopugixeroramox.medianewsonline.com/10_class_math_ncert_solution_download.pdfIn PDF document text
    • https://nepokotivo.weebly.com/uploads/1/3/2/8/132814168/83c8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369161/normal_602141e4b1a73.pdfIn PDF document text
    • http://zogometemo.sportsontheweb.net/arbys_fish_sandwich_calories_without_bun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387033/normal_603b5a333cfbd.pdfIn PDF document text
    • https://nanupubixo.weebly.com/uploads/1/3/0/9/130969545/begaputupibaz.pdfIn PDF document text
    • http://witomemu.scienceontheweb.net/sanufafifidazuzinolisate.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479925/normal_5fe62261a9c6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387031/normal_601c6aabaec89.pdfIn PDF document text
    • https://pobunusegem.weebly.com/uploads/1/3/4/4/134460984/7141316.pdfIn PDF document text
    • https://nowipulegetubut.weebly.com/uploads/1/3/4/6/134647137/5154547.pdfIn PDF document text
    • https://xuvasilibozin.weebly.com/uploads/1/3/5/3/135335949/6568207.pdfIn PDF document text
    • https://kiwiwutirove.weebly.com/uploads/1/3/4/7/134707888/1973069.pdfIn PDF document text
    • https://degevibuv.weebly.com/uploads/1/3/5/3/135316410/kazosunigex-vepusagekowufo-luvetiz-ximozagebolovud.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/wixanarer/cuestionario_de_habitos_alimentarios.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/crystal_report_designer_free_trial.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/49811375183.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/aptitude_questions_and_answers_on_percentage.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/seberkas_sinar_cover_adlani_rambe_lirik.pdfIn PDF document text
    • http://teluroluxeterez.myartsonline.com/jurnal_internasional_pendidikan_agama_islam.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/duwirudimelifili.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_off0000d18c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18C 5420 bytes
SHA-256: c71c0005aec01aec0e1e485d78bd567ca475657333714b85494ec97dc801a75f
font_01_sfnt_off0000e3eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EB 10344 bytes
SHA-256: 0d5c6a2f51411cd547156bf9244e5c41f59ec2450c3a4972234cf378522ac564

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