Malicious PDF — malware analysis report

Static analysis result for SHA-256 d77262bba1b2a8b4…

MALICIOUS

PDF

70.2 KB Created: 2021-03-01 04:50:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e8bbeb9103634bbeb770011f27604231 SHA-1: 9cc26d0eeb9df814e7aac1b30407257c207efd5f SHA-256: d77262bba1b2a8b4cc3119c231054b4cc2693bcd837bf14fbb8d7604ae85b825
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/award?keyword=moon+river+lyrics+frank+sinatra PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477387/normal_60391fa6af15e.pdfIn PDF document text
    • https://cdn.sqhk.co/vonirosidejo/VhjanSH/country_music_awards_2020_host.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415321/normal_5fff4f8beaea6.pdfIn PDF document text
    • http://20970907.net/16725011028k78xp.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/niijphe/38302604458.pdfIn PDF document text
    • http://bupro.asia/35077016014x0tsl.pdfIn PDF document text
    • https://cdn.sqhk.co/wafavalufa/igjbVBI/disney_wedding_cake_toppers_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/xiruregexibe/cxicGtl/odd_eyes_rebellion_dragon_chant.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498801/normal_5fedbf59ba6bf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jajoxutevo.epizy.com/brenda_fassie_black_president.pdfIn PDF document text
    • http://dilezupuforew.epizy.com/gojutavipekifituvaf.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/spiderman_flash_games_for_pc.pdfIn PDF document text
    • http://faleferesevo.onlinewebshop.net/night_owl_camera_with_2_way_audio.pdfIn PDF document text
    • http://riduxipilitaj.epizy.com/accu-chek_aviva_plus_blood_glucose_test_strips_50_ct.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9EA 4892 bytes
SHA-256: d91cd2e73b8d548908449f3cea4d0b470a6bc3c89340f5d99194136389b8ea9a
font_01_sfnt_off0000daa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA5 9896 bytes
SHA-256: c25b2cecf1835f6c86e1bacc15165974c13da1c1d72742e0b1d647ba753bbc4c
font_02_sfnt_off0000fc95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC95 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378