Malicious PDF — malware analysis report

Static analysis result for SHA-256 023b05abf2e1c2b3…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 03:20:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5a05335233990de76908a933899f2e20 SHA-1: 4a6b951971facbe98501dca964bdb9f20855a5d5 SHA-256: 023b05abf2e1c2b33f32c7aa3dc4de14801daadd384853ee3cd344c9fb864b59
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://botokaw.ru/award?keyword=what+foods+does+not+have+gluten PDF link annotation
    • http://vijexibat.mywebcommunity.org/how_to_see_cracked_passwords_john_the_ripper.pdfIn PDF document text
    • http://nekuwagibajese.getenjoyment.net/fusuluvovamonixibapuperul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455178/normal_5fe431b5cd9f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421336/normal_6025f53f9fadc.pdfIn PDF document text
    • https://xukifunizagopo.weebly.com/uploads/1/3/4/0/134013279/tajugilobawibi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405662/normal_5ffff47eb2567.pdfIn PDF document text
    • http://xitawefavam.medianewsonline.com/31850591789.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370269/normal_60158430f111a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379961/normal_60098afddf40e.pdfIn PDF document text
    • https://woruranevulabiw.weebly.com/uploads/1/3/4/0/134096732/85688649e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402745/normal_5fdd481b99147.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/scott_pilgrim_vs_the_world_cast_brie_larson.pdfIn PDF document text
    • http://rowowevu.mypressonline.com/81137696491.pdfIn PDF document text
    • https://bogobesupagal.weebly.com/uploads/1/3/0/7/130775478/9707630.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/canon_rebel_t5_details.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414341/normal_5fe98244762f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nosigegu.onlinewebshop.net/adobe_photoshop_cs3_bangla_tutorial.pdfIn PDF document text
    • http://megigezorozo.atwebpages.com/what_is_a_derringer_used_for.pdfIn PDF document text
    • http://tiluxusimutine.atwebpages.com/history_islam_in_west_africa.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/mapozuwuzatimow.pdfIn PDF document text
    • http://gajopule.myartsonline.com/model_place_value_relationships_lesson_1.1_worksheet_answer_key.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_off0000e1fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FE 5148 bytes
SHA-256: 31a3fc607043234f096513e91055db6f4cdf9a5b244e53352a4ee96416135c9d
font_01_sfnt_off0000f39d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39D 10368 bytes
SHA-256: 78b4ef9713fc2e34fbeae819557be1758979dbd9f0b14f3cfae356ae26691943

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