Malicious PDF — malware analysis report

Static analysis result for SHA-256 74c5eb11c3180452…

MALICIOUS

PDF

74.5 KB Created: 2021-03-25 13:36:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 86eec5036f8b8fd58899b3b3b2bcda4d SHA-1: e52721554fcd41215ef65e89bdc07d13cb36a76d SHA-256: 74c5eb11c31804523b7c3bd6ac393d4202db22fe097cc37e21ce6ed3807efd19
186 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body mentions 'Wrong turn full movie part 1', likely a lure to entice users to click on the embedded URLs. The presence of PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, along with ClamAV and ML detections, strongly indicates malicious intent, likely for distributing further malware or phishing for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://botokaw.ru/123?utm_term=wrong+turn+full+movie+part+1 PDF link annotation
    • https://rumitubo.weebly.com/uploads/1/3/4/5/134525427/4096030.pdfIn PDF document text
    • https://vasejafarobi.weebly.com/uploads/1/3/1/4/131454155/sizofalozituw_nakovipivanikev.pdfIn PDF document text
    • https://disesusobabetom.weebly.com/uploads/1/3/0/8/130814900/5799464.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376404/normal_604dd4c8ad9cd.pdfIn PDF document text
    • https://ronabamipiboti.weebly.com/uploads/1/3/4/5/134598089/3337094.pdfIn PDF document text
    • https://wawedubogefolik.weebly.com/uploads/1/3/5/3/135391715/sekoti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383698/normal_605a40c0c15ed.pdfIn PDF document text
    • http://dutipajito.22web.org/wumanufisikipikemigadeb.pdfIn PDF document text
    • http://nuwiratuzitezep.22web.org/scott_pilgrim_vs_the_world_comic_book_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472206/normal_6000a0ec8f252.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457862/normal_601cfd5532d83.pdfIn PDF document text
    • https://werevofapopaja.weebly.com/uploads/1/3/4/4/134492388/7440735.pdfIn PDF document text
    • https://moxuvobojivoz.weebly.com/uploads/1/3/0/8/130873852/420c567f247154c.pdfIn PDF document text
    • https://zebaraxofalolal.weebly.com/uploads/1/3/0/8/130813897/xetowedo-lesonijosak-mepirexarabati-fokepenujefase.pdfIn PDF document text
    • https://ludolukek.weebly.com/uploads/1/3/4/6/134699908/negolusasa-tamuzaragogifir-gizuwiwudewafo.pdfIn PDF document text
    • https://weranatowo.weebly.com/uploads/1/3/1/4/131408071/5712783.pdfIn PDF document text
    • https://girewatadetax.weebly.com/uploads/1/3/2/6/132681062/ponedubavibuj-giwibun-nubugogilu.pdfIn PDF document text
    • https://zovafizi.weebly.com/uploads/1/3/0/8/130874114/af2b1c1.pdfIn PDF document text
    • https://cdn.sqhk.co/xiditado/gJ3Aeb6/ramagavexefasivanowaxus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370055/normal_6007b705dc545.pdfIn PDF document text
    • https://pugoxadegile.weebly.com/uploads/1/3/1/3/131379866/698936aab.pdfIn PDF document text
    • http://sanenoxedan.iblogger.org/international_legal_jobs_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/nufopusifa/gTfjaif/oneplus_gallery_update_apk.pdfIn PDF document text
    • https://fekawuzode.weebly.com/uploads/1/3/5/9/135993312/ratibokoj-sulasamut.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/tujugebirukapi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gigapexolazet.rf.gd/69907550133.pdfIn PDF document text
    • http://valutef.rf.gd/68487186974.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_off0000e4c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C0 5168 bytes
SHA-256: afac0aede86e4ff751e04a73e61a62ff938ca86296fd6bc573f0f86f8b8dbd4a
font_01_sfnt_off0000f660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF660 11300 bytes
SHA-256: 0aaed75a356623ab2cec4c2e44dd17e52407f2ecb3cbd2ffdefce3b4bd8751c8

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