Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ec73119f4020d3…

MALICIOUS

PDF

77.6 KB Created: 2021-05-22 13:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81f954968f9184aa78b434b42f022aee SHA-1: b2e5c8bcfaee574abd4b65a95592a297330ffecd SHA-256: e9ec73119f4020d385f964abefda739caafd454c1161eb103f9281991bef5213
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are likely part of a link farm designed to direct users to malicious sites. The primary malicious URL identified is 'https://ponafet.ru/strik?utm_term=how+to+open+ge+stove+top'. While no scripts were explicitly extracted, the PDF structure and numerous external links strongly suggest an attempt to redirect users to potentially harmful content, consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=how+to+open+ge+stove+top
    • https://tukobigerokigab.weebly.com/uploads/1/3/4/6/134653943/vujosesijoj.pdf
    • https://zedabobosarafon.weebly.com/uploads/1/3/0/8/130813357/bb068f612a5d89.pdf
    • https://wobipogipexiwom.weebly.com/uploads/1/3/1/0/131070125/1320.pdf
    • https://rovorakule.weebly.com/uploads/1/3/4/7/134774255/nedevonusek.pdf
    • https://bunozejat.weebly.com/uploads/1/3/4/3/134387809/poxemuwe_wobel_futetolorulon.pdf
    • https://vujaroroxino.weebly.com/uploads/1/3/5/3/135314625/4e15b32fdaba29.pdf
    • https://rujijixagav.weebly.com/uploads/1/3/1/3/131383475/6819a2e7809b7ec.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pevarijidasalop/why_are_passive_aggressive_behaviors_dangerous.pdf
    • https://uploads.strikinglycdn.com/files/c8ae0ae0-189b-4f47-a0d8-4ed01eef049f/what_types_of_infectious_agents_are_teratogens.pdf
    • https://uploads.strikinglycdn.com/files/47872225-5300-4d73-b50f-d03968caf9c4/9564403789.pdf
    • https://uploads.strikinglycdn.com/files/ac1fdf9d-667c-4e2f-aefe-6fe2e9670bd2/how_to_replace_samsung_tv_power_board.pdf
    • https://uploads.strikinglycdn.com/files/b4092692-f1c7-44a5-8dd8-ecf45eebd61b/48093701147.pdf
    • https://uploads.strikinglycdn.com/files/c91b7ad1-ce46-4f43-838c-3b47af295edb/idiots_guides_music_theory_3e.pdf
    • https://s3.amazonaws.com/buganabowumujef/kahoot_answer_hack_android.pdf
    • https://uploads.strikinglycdn.com/files/ba19725d-90a8-4aeb-b1e0-71ab5ce1f202/how_to_fix_squeaky_graco_swing.pdf
    • https://s3.amazonaws.com/zulezov/56624880719.pdf
    • https://s3.amazonaws.com/sejakopa/baptism_certificate_template_uk.pdf
    • https://s3.amazonaws.com/bifadiwuwileji/21448433673.pdf
    • https://s3.amazonaws.com/wekibik/holy_quran_download_with_urdu_translation.pdf
    • https://s3.amazonaws.com/fomudebipefasu/47091423413.pdf
    • https://uploads.strikinglycdn.com/files/2557559a-dbb5-47e0-bd97-b9df1dfba24e/symposium_plato.pdf
    • https://uploads.strikinglycdn.com/files/bd662133-0adc-48e8-ba07-6f8baecfb576/tipos_de_sensores_sistemas_de_informacion_geografica.pdf
    • https://uploads.strikinglycdn.com/files/5db0fc0c-694b-4053-b3ee-53186efcd019/intro_a_dressage_test_free_download.pdf
    • https://s3.amazonaws.com/gosete/how_to_get_gerudo_clothes_for_free.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f328.bin
44482b7ea6fffb08f56de969ef62f23cefe05d13d25fb3b090f00106432ab22e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF328 4760 bytes
font_01_sfnt_off00010395.bin
71d257bdf2367dc3fd0a39dfcffc85c270cabbea2ff63981ddff9fce39e5d684		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10395 11116 bytes

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