Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6f053f96db8da0…

MALICIOUS

PDF

72.9 KB Created: 2021-02-20 19:01:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 50edd7d42cc3db2a225e78198a03ce1d SHA-1: 640ae29300e6c11d9f31807cf0d5b10f247030f9 SHA-256: 2a6f053f96db8da0c71a67796413c39b336f61247df4e2231b61cec3afabaf75
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://baarspo.ru/wix?keyword=orchard+park+elementary+carmel PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379379/normal_5fe022a9f09e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451945/normal_6021783c5b433.pdfIn PDF document text
    • https://limifotediko.weebly.com/uploads/1/3/5/3/135325738/9545196.pdfIn PDF document text
    • https://cdn.sqhk.co/kuvuzebilet/wvhaig8/supper_stack_4_3ds_download.pdfIn PDF document text
    • https://varijamali.weebly.com/uploads/1/3/1/8/131856150/6982021.pdfIn PDF document text
    • https://vupolape.weebly.com/uploads/1/3/4/7/134749420/luxixigije.pdfIn PDF document text
    • https://metonokosaza.weebly.com/uploads/1/3/2/6/132681587/pemuporod_jufoxifewodoxuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425727/normal_5fca669d3f014.pdfIn PDF document text
    • https://devigejijakefu.weebly.com/uploads/1/3/2/7/132740662/lefuneranodevel-dokurikuferip.pdfIn PDF document text
    • https://cdn.sqhk.co/remigalakefo/65hby6m/magic_dream_tiles_download.pdfIn PDF document text
    • https://namadifudemabum.weebly.com/uploads/1/3/0/8/130813063/simuvino-gevodakedo.pdfIn PDF document text
    • https://cdn.sqhk.co/tenerinirik/fXUhije/nepal_important_events.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/gjhZ90L/larva_flying_yellow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454668/normal_5fce0d44678ba.pdfIn PDF document text
    • https://cdn.sqhk.co/xefilelo/npifhfT/ear_doctor_clinic_hospital_games.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/jojitagifuva/folagedovanojimefunabelas.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/gulp_down_food_worlds_biggest_crossword_answers.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_off0000e0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E8 5328 bytes
SHA-256: 2f5f49051f3f6b3c54c22dd395a2d83aa0e2fa9e5a2149ca9427567fb41ce385
font_01_sfnt_off0000f2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E2 10400 bytes
SHA-256: d8201c2898fe6ad36e5b6c7dab83a5baa6019659ab8dcce978aafebce81adbd5

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