Malicious PDF — malware analysis report

Static analysis result for SHA-256 94aac9a2d0c88996…

MALICIOUS

PDF

74.0 KB Created: 2021-02-19 02:33:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d4019c0953ba5a6389d0917db8aade9c SHA-1: 6332d72d3b6412bbcc16e316be5853ef6e8e40ca SHA-256: 94aac9a2d0c88996fe721ece4ec9e88cd985f292bc7bd80de1086bc610a5cffb
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://jacksth.ru/wix?keyword=download+asphalt+8+apk+for+pc PDF link annotation
    • https://cdn.sqhk.co/zasokolof/khetljb/33492829477.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/iXijb52/crossing_the_rubicon_lyrics_bob.pdfIn PDF document text
    • http://winoraama.fun/top_paid_android_apps_in_play_storesdsgp.pdfIn PDF document text
    • https://wavujosivisero.weebly.com/uploads/1/3/2/7/132740585/lugadil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417119/normal_600b0f1232dd4.pdfIn PDF document text
    • http://dle-tpl.site/rososafd07pq.pdfIn PDF document text
    • http://erkutungotu.com/vilogefidukaliwid7nz.pdfIn PDF document text
    • http://edayafar.xyz/android_phone_charger_port_type4tpz3.pdfIn PDF document text
    • https://dabusoze.weebly.com/uploads/1/3/4/5/134585091/22e16dbf027a26c.pdfIn PDF document text
    • http://luxshop21.site/definite_integral_examples_and_answersrbhft.pdfIn PDF document text
    • https://pexigupor.weebly.com/uploads/1/3/4/9/134901766/gajafefikibu-gudosedez.pdfIn PDF document text
    • http://paganel.world/6317056266692ez9.pdfIn PDF document text
    • http://lynciguest.com/797432061053yxul.pdfIn PDF document text
    • https://cdn.sqhk.co/napumefu/Lgdhbhg/mufebexujikalopazu.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/pevarijidasalop/foledaviwewuramilotomapam.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/how_to_write_an_essay_7th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/79341471322.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/tv_guide_hobart_friday.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_off0000e303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE303 5592 bytes
SHA-256: 6aa96f57cc8a4e0f153fadfc8e5dca93ea90b80334c4d5892b5fdf2869a07e6a
font_01_sfnt_off0000f627.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF627 10380 bytes
SHA-256: 3d93442d3d36ad99864dd1b26fb858dc5e575bcc66534bcce4520af530256e98