Malicious PDF — malware analysis report

Static analysis result for SHA-256 0970ed831a3410b6…

MALICIOUS

PDF

83.5 KB Created: 2021-03-13 23:09:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d986741263b927bffd37480f12310361 SHA-1: 26ee936ac4ace478254f76a9d7aaebd1ec0e712f SHA-256: 0970ed831a3410b664d06f08abbbf5c9c1f414d0c7085011d4d35c7e0df60d19
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL pointing to a suspicious domain ('ponafet.ru') that is likely used for malware distribution or phishing. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to create a link farm or distribute malicious content. The ClamAV detection and ML classifier further support the malicious nature of this PDF.

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 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.
  • 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+rig+for+surf+perch+fishing PDF link annotation
    • https://jeputuzomum.weebly.com/uploads/1/3/1/3/131398597/zukegukezek.pdfIn PDF document text
    • https://lakenugud.weebly.com/uploads/1/3/4/9/134901786/tesagizavet_vefakosijifow_nozuvuriwov_pufilolit.pdfIn PDF document text
    • http://item-mask.top/6644128332367ttq.pdfIn PDF document text
    • https://mamunazeve.weebly.com/uploads/1/3/0/8/130814121/novirilawi-nokusebabumal.pdfIn PDF document text
    • http://fusubakitakudup.66ghz.com/nezorave.pdfIn PDF document text
    • https://sadepejeriroxet.weebly.com/uploads/1/3/5/3/135337628/puzozanarodakawube.pdfIn PDF document text
    • https://sagagokibifaku.weebly.com/uploads/1/3/4/6/134625973/629833.pdfIn PDF document text
    • https://jufufowepum.weebly.com/uploads/1/3/5/3/135348100/supobujafowusagag.pdfIn PDF document text
    • http://tevfikyuce.xyz/383427487819muv2.pdfIn PDF document text
    • http://webmastervlad.ru/uno_siempre_cambia_al_amor_de_su_vidw7az7.pdfIn PDF document text
    • https://bodujifoji.weebly.com/uploads/1/3/5/3/135394102/veregufi.pdfIn PDF document text
    • http://gogotmif.space/hit_em_with_the_woahkmg0x.pdfIn PDF document text
    • http://limecash.xyz/how_to_repair_hp_laptop_broken_hingezy3bs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/business_analytics_data_analysis__decision_making_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/37799867254.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/65501598157.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/family_feud_survey_questions_funny.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/best_android_simulation_games_of_all_time.pdfIn PDF document text
    • http://fupofew.epizy.com/neoplasia_maligna_da_mama.pdfIn PDF document text
    • http://vemenukesemi.epizy.com/40464265050.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA27 4968 bytes
SHA-256: d44e85fda02501ffe34e33768068e6f58d75bf54d039c37aafb5a2c562f457e2
font_01_sfnt_off00010b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B27 11020 bytes
SHA-256: 41c975b2a714947097e927432a20736479a3f6d4a83ace70db494528bd89edca
font_02_sfnt_off000130bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130BF 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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