Malicious PDF — malware analysis report

Static analysis result for SHA-256 67b8f331e2376899…

MALICIOUS

PDF

69.7 KB Created: 2021-02-28 15:12:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 61e1ce6dc53fe27a8311998fb8c3d150 SHA-1: 80416b49fb801c5ab9d989ac27ccf5cef6f8f58c SHA-256: 67b8f331e237689920d94e8df2b9a1da5d42adb1452a4bb9bf2600b554a17fc4
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://baarspo.ru/award?keyword=remington+1187+cantilever+rifled+slug+barrel PDF link annotation
    • https://cdn.sqhk.co/vumivatuvi/hhbheoY/70427342928.pdfIn PDF document text
    • https://fabisinutufonos.weebly.com/uploads/1/3/5/9/135993578/8402028.pdfIn PDF document text
    • http://premiumpornclips.com/54623537222gtioe.pdfIn PDF document text
    • http://umniashka.ru/60280349567qfv92.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/zalakodivukexawen.pdfIn PDF document text
    • http://repaircreditscore.info/how_to_adjust_rv_fridge_tempor5b6.pdfIn PDF document text
    • https://vejarava.weebly.com/uploads/1/3/1/0/131070596/tukoposapotiges_giwetewat.pdfIn PDF document text
    • https://simazilojimi.weebly.com/uploads/1/3/5/3/135345327/zekujaf-wopulaka-xokujo.pdfIn PDF document text
    • http://gadetebes.sportsontheweb.net/koduvedoramavituzimuz.pdfIn PDF document text
    • http://2220202.ru/how_to_tighten_chain_on_stihl_chainsaw_ms1708b1gp.pdfIn PDF document text
    • http://plusstore.pro/subjects_of_special_study_examplesqpsp5.pdfIn PDF document text
    • http://gnoogle.site/47126964931davp2.pdfIn PDF document text
    • http://imm-shoes2.club/police_helicopter_simulator_mod_apkvpw67.pdfIn PDF document text
    • http://fituxem.sportsontheweb.net/aristotle_poetics_in_bengali.pdfIn PDF document text
    • http://creditpm.com/dewalt_dcd771_tool_onlyo7aw3.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/hhZzidX/marine_corps_galaxy.pdfIn PDF document text
    • http://digtalcaliper09.xyz/2610621581189mey.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/42535558692.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A1 5876 bytes
SHA-256: e071aa697afa56bef5b0a7c969e6a500bb227212cde9c342b0f54ef70f426de8
font_01_sfnt_off0000e798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE798 9816 bytes
SHA-256: a84218ea59554a518d68ebe7e546d19c159f1f5919bf0c7a34d97acb59cddae0