Malicious PDF — malware analysis report

Static analysis result for SHA-256 142008e8e7ea0ff6…

MALICIOUS

PDF

72.8 KB Created: 2021-02-16 08:28:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1e1cb35d1d4186788a44288339d0f5e8 SHA-1: 8ce0aeee0f2b0ee3c5235da5d8e423565ef63834 SHA-256: 142008e8e7ea0ff6a8a8e94544c25d3a9abc23bf091edbac533e11ea026bc0a2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=spring+breakers+2013+parents+guide PDF link annotation
    • https://lalibirubifo.weebly.com/uploads/1/3/0/8/130873838/dc0e1b8c25.pdfIn PDF document text
    • https://kafunonedejo.weebly.com/uploads/1/3/4/6/134662894/6771872.pdfIn PDF document text
    • https://sokexeziboril.weebly.com/uploads/1/3/4/9/134902232/xatelixok-levuw-janevirasu-ronefobu.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/ftii_pune_admission_form_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451365/normal_60210bd15a256.pdfIn PDF document text
    • http://shoop-fp.ru/la_gran_aventura_de_alejandro_answer_key_chapter_2k1apz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454966/normal_5fdfacf040c00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407804/normal_5fd11d3fc9a89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5ff45ff202fe4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375352/normal_6012f9cb301bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453142/normal_6022dd5fe7556.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://baxovebiw.rf.gd/dogosa.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/canada_food_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/convert_excel_sheet_to_landscape.pdfIn PDF document text
    • http://zazujipediwa.rf.gd/black_and_decker_electromate_400_replacement_parts.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_off0000ded0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED0 5892 bytes
SHA-256: 431f7021789d99e412f1459b351f5eac865af7eb509c1371d34c7caf05b9fff1
font_01_sfnt_off0000f2e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E4 10264 bytes
SHA-256: 56e8ebcf7b0f0cde938f45abaef3e99aedd1eb0172c141ed5a74f32db1d6a65d