Malicious PDF — malware analysis report

Static analysis result for SHA-256 df8cc89127ed598c…

MALICIOUS

PDF

76.2 KB Created: 2021-02-07 08:38:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: df010eb84611ab5fcf723a43e90b46a7 SHA-1: df4a34d60f3610f0fe1ce90b9e756f05700b50d0 SHA-256: df8cc89127ed598c82a0bda75b5482f8c8147339a0737ccb26a3d7b4dfb6e703
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wb?keyword=mes%20jobs%202018%20advertisement%20pdf PDF link annotation
    • https://faxomozux.weebly.com/uploads/1/3/0/7/130775398/3177858.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469353/normal_6012c3bcedacc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421611/normal_5fdbdd348c265.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393041/normal_5ffe94942771d.pdfIn PDF document text
    • https://jixatazibasuv.weebly.com/uploads/1/3/4/4/134402985/rozipiziwafupeduga.pdfIn PDF document text
    • http://artyom.guru/sakivapekesesobikonqg1z.pdfIn PDF document text
    • https://gidorimafemona.weebly.com/uploads/1/3/4/8/134867851/755be94582d271.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483365/normal_60053f91339e2.pdfIn PDF document text
    • http://gawoxubut.22web.org/legacy_of_discord_guide_br.pdfIn PDF document text
    • http://zanartcc.net/536264991101dzi.pdfIn PDF document text
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/samipinibe_doxorofax_mokilejopegu_siluze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fewuzefar.rf.gd/toddler_bed_sheet_set_walmart.pdfIn PDF document text
    • http://faduzidivatakid.epizy.com/driver_touchpad_hp_windows_8._1.pdfIn PDF document text
    • http://setekavapitefe.rf.gd/23331921498.pdfIn PDF document text
    • http://bovareniwesoz.epizy.com/site_appraisal_report_sample.pdfIn PDF document text
    • http://zixadadafupeg.epizy.com/baseball_card_game_for_android.pdfIn PDF document text
    • http://xafamikipu.epizy.com/72141012488.pdfIn PDF document text
    • http://rinexaxar.rf.gd/salut_d_amour_piano_accompaniment_sheet_music.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_off0000e870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE870 5956 bytes
SHA-256: bb996ab3e80dd7d6a7a90f7b997a66fa598bb0fdc1d7691df29bb32a4360d357
font_01_sfnt_off0000fcb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB4 11032 bytes
SHA-256: 4274b3b3025a6e172498a69171f43919b9a7c5a46e9fc6ee69537b10c59dfe89