Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae10c5451215464…

MALICIOUS

PDF

72.0 KB Created: 2021-02-05 00:13:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b1bf101cf232f92456a69044d77a21b1 SHA-1: 86c1f09bbeabce926f4cb262918b7fbb602d95f3 SHA-256: bae10c5451215464b47edf1ed67dfe9e92a492770567ce668b9b8e95e4e09119
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://jacksth.ru/123?utm_term=distressed+debt+analysis+pdf PDF link annotation
    • https://tugojomabam.weebly.com/uploads/1/3/4/5/134588125/wolaji.pdfIn PDF document text
    • http://susurrus.space/jason_schreier_blood_sweat_and_pixelsgtlrt.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/ghj0hcs/75134621696.pdfIn PDF document text
    • https://gajebafanagifim.weebly.com/uploads/1/3/2/8/132815836/jelovumafez.pdfIn PDF document text
    • https://kamabaxi.weebly.com/uploads/1/3/4/6/134650964/xugopuzenix-diwafezizima.pdfIn PDF document text
    • https://cdn.sqhk.co/gixezovof/7gcwFJ2/rescue_mission_thrift_store_hours.pdfIn PDF document text
    • https://teraludejos.weebly.com/uploads/1/3/5/3/135304334/xizogemara_bevabola_ganuradugolej_gumepelo.pdfIn PDF document text
    • https://xutareziwax.weebly.com/uploads/1/3/5/3/135327408/c6c3119c0bff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383565/normal_5fc7dfecb554e.pdfIn PDF document text
    • http://ig-soft-team.com/java_coding_interview_questions_and_answerszpbwn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369919/normal_600b58ebb5048.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489587/normal_601319ed791cf.pdfIn PDF document text
    • https://cdn.sqhk.co/kapumikogux/Aicid2Z/80356507572.pdfIn PDF document text
    • https://gulipuzajetag.weebly.com/uploads/1/3/5/3/135397689/2f90b57476.pdfIn PDF document text
    • https://bizavewes.weebly.com/uploads/1/3/5/3/135323934/firevi-petitok.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dd46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD46 5276 bytes
SHA-256: 95b731bb40afd0af7cd7b1da3e47ab7b12bcc4379a65d57e39951e704cb1ac6d
font_01_sfnt_off0000ef4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF4A 10568 bytes
SHA-256: 9ef9b6a62aade88b17b3118ee1bfb5c4afd186022aa770485ee19e06f9f99bcb