Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ab9eb057dd171f…

MALICIOUS

PDF

73.8 KB Created: 2021-02-22 19:45:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 919bad4822c29a05c2e09cdbb3939d0d SHA-1: d1bd572039d61be72b6cc367e8921f3b7cff8814 SHA-256: 03ab9eb057dd171fe39abdeeba9013735b476073a224735133c3801fbe75e4b4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/123?utm_term=1999+land+rover+discovery+2+fuse+box+diagram PDF link annotation
    • https://fipoxojumudex.weebly.com/uploads/1/3/4/6/134649093/zefogabu.pdfIn PDF document text
    • https://cdn.sqhk.co/powirafawume/gJidbUl/minecraft_hopper_cart_unloader_1._14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_602f1a15d8956.pdfIn PDF document text
    • https://cdn.sqhk.co/fedelubu/icqVbeq/australian_motorsport_calendar_2020.pdfIn PDF document text
    • https://nopetozu.weebly.com/uploads/1/3/4/5/134507327/1368437.pdfIn PDF document text
    • http://verifiedbadge-lnstagram.com/5e_dungeon_masters_screen63hsh.pdfIn PDF document text
    • https://cdn.sqhk.co/furigelo/hLhjAic/farm_bay_enterprise.pdfIn PDF document text
    • https://cdn.sqhk.co/duxevowoli/ggkhfMu/venuzimex.pdfIn PDF document text
    • https://wogalipa.weebly.com/uploads/1/3/4/3/134316604/kezojejoj.pdfIn PDF document text
    • https://zorivaleguzovul.weebly.com/uploads/1/3/4/5/134596353/92d905.pdfIn PDF document text
    • https://cdn.sqhk.co/jagojixego/8awhhge/you_knock_me_down_song.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/nakevoja/xokefekonefabosapep.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/31665801155.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/88409525198.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/royal_paper_shredder_stuck.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_off0000e368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE368 5956 bytes
SHA-256: 258d2b59e3d7766283040ab9f301073a7c53665094a8f6b623c7a44637f7a189
font_01_sfnt_off0000f7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7AE 10208 bytes
SHA-256: e39ab20079334e0ec483e647fc1af2fc9cf9cf1f2688036f63dd6b00335e92be