Malicious PDF — malware analysis report

Static analysis result for SHA-256 68485baecfcb375f…

MALICIOUS

PDF

72.6 KB Created: 2021-02-11 15:36:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f679cc79f8c4ee4ab6e6347bd67b0c6d SHA-1: d86727e74a3ece9738d6cea289858a789efdd5e5 SHA-256: 68485baecfcb375f76c27ab4a02af0a8d27244ac604aac1adfa7bb6ad3a62f2a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://druttle.ru/wix?keyword=aplia+assignment+answers+environmental+science PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475209/normal_60210abd58f2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449000/normal_601b622360841.pdfIn PDF document text
    • http://tinubovibiwiwi.iblogger.org/99543773897.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372987/normal_5fe1c069cfa0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383295/normal_60088366c74ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390323/normal_601b102ca230e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427501/normal_5ff47bc59b2e5.pdfIn PDF document text
    • https://tuboxivodase.weebly.com/uploads/1/3/4/3/134387713/a1bbff99dfe43d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392867/normal_60164e5507bef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377647/normal_601e14c565ac0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kedipakusox.epizy.com/zebebega.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/93105533913.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/46709072853.pdfIn PDF document text
    • http://nigukeja.epizy.com/dirimipabonogus.pdfIn PDF document text
    • http://doroxokile.epizy.com/video_celine_dion_power_of_love.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/amoeba_sisters_llc_answer_key_classification.pdfIn PDF document text
    • http://vavijirodujozi.rf.gd/apple_alarm_clock_sound.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/86211728458.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/big_ideas_math_pre_algebra_answers.pdfIn PDF document text
    • http://zukavinu.rf.gd/42205914645.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_off0000df14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF14 5396 bytes
SHA-256: 4636c7a96d84daa59b5208decab7a1a8ae28ebc9c00cc72c977b99eae155382f
font_01_sfnt_off0000f171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF171 10424 bytes
SHA-256: e050f981864c446fddd8f417ff56d704813878965fa04ff303548cd81cd88c04