Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfa2f9d0ab113e3c…

MALICIOUS

PDF

68.4 KB Created: 2021-02-24 11:38:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b15028878051e9f26518b3b60a0bd7da SHA-1: aed5cefd69c5be7dc0d81630f934ce27c0ee3284 SHA-256: dfa2f9d0ab113e3c462dba710c3abc863a44127a9978e7d1ef8c728a2687dc56
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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.
  • 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://bologen.ru/wix?keyword=up+all+night+lyrics+blink+182 PDF link annotation
    • https://jabikazisejifo.weebly.com/uploads/1/3/1/6/131606509/zefut.pdfIn PDF document text
    • https://cdn.sqhk.co/kawurefeki/XCtMDgd/4311643560.pdfIn PDF document text
    • https://cdn.sqhk.co/vilomikov/yghiaia/turret_fusion_idle_clicker_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/goberirud/bCRigpf/down_the_hill_murders_update.pdfIn PDF document text
    • https://cdn.sqhk.co/libodinidep/jb4ijhh/xadanisegilebonutare.pdfIn PDF document text
    • https://tuduzijusesuzi.weebly.com/uploads/1/3/1/4/131406801/1770703.pdfIn PDF document text
    • https://kitawusew.weebly.com/uploads/1/3/4/2/134234725/jumumenaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420438/normal_602c8e0a2de62.pdfIn PDF document text
    • https://xuvelufuxilo.weebly.com/uploads/1/3/5/3/135387868/vikusalaxuzojojopiti.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/gmOtiii/craftsy_fabric_clearance.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/mKifiir/attack_of_the_giant_mutant_lizard_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/xiladuxe/HheQn77/11432262424.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/pphi8je/friendship_videos_for_whatsapp_status_download_sharechat.pdfIn PDF document text
    • https://mafobosapufi.weebly.com/uploads/1/3/4/5/134505980/2d6280cf6589c.pdfIn PDF document text
    • https://mulodetudujidof.weebly.com/uploads/1/3/5/3/135325190/7741413.pdfIn PDF document text
    • https://rejifiri.weebly.com/uploads/1/3/1/3/131380436/4217121.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/qiahdhg/vozomix.pdfIn PDF document text
    • https://rutelixiriselop.weebly.com/uploads/1/3/4/7/134748314/1357289.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374519/normal_5fdbcb77c6b2a.pdfIn PDF document text
    • https://kilutiwoxit.weebly.com/uploads/1/3/1/6/131636983/66ad10765d.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/nimuwet/mandatum_life_insurance_company_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/40412484893.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/zoxixor.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/business_development_life_cycle.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_off0000ce33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE33 5872 bytes
SHA-256: f1049ef6bbd001db3f9c6cbe13694f3f92a84d11a8402ed7004d85e70416dd62
font_01_sfnt_off0000e230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE230 9956 bytes
SHA-256: 35ac0dd9e5d68b8f79b6dfeefbffe56a32470e544bb64d779a5376c32a5eff1c

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