Malicious PDF — malware analysis report

Static analysis result for SHA-256 e669aee2f8967b5e…

MALICIOUS

PDF

69.4 KB Created: 2021-03-08 16:48:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3d53564aaafe0d09cf53c51bef5ee0e0 SHA-1: 8ef74ed17ea3d6576ab3660d1469751f8e24f69b SHA-256: e669aee2f8967b5e8d09720d2a694a59c10b0a7c83435e2763f86c92d63dd768
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://zajinet.ru/wix?keyword=gods+playing+field+unblocked PDF link annotation
    • https://tigerabedudutid.weebly.com/uploads/1/3/5/3/135304069/ad71174f6da5b.pdfIn PDF document text
    • https://vipegiwofavagob.weebly.com/uploads/1/3/5/3/135302795/nuzimanapobal_befepiduv.pdfIn PDF document text
    • https://cdn.sqhk.co/sabumijobude/jjfBMo5/native_pigs_for_sale_philippines.pdfIn PDF document text
    • https://roxobirunuj.weebly.com/uploads/1/3/4/0/134096027/5597bc37b67.pdfIn PDF document text
    • https://cdn.sqhk.co/kutajanode/QPigcC5/gameboy_advance_sp.pdfIn PDF document text
    • https://gadudomarun.weebly.com/uploads/1/3/4/7/134705140/livisule_fenoxenudilepu_goseturarojub.pdfIn PDF document text
    • https://wegusolojemirub.weebly.com/uploads/1/3/4/5/134597015/fd3a65f.pdfIn PDF document text
    • https://bekedurid.weebly.com/uploads/1/3/0/8/130874189/tujuduzawives.pdfIn PDF document text
    • https://bimevaxufozuz.weebly.com/uploads/1/3/2/6/132683359/bupisevusi_didifum.pdfIn PDF document text
    • https://cdn.sqhk.co/rogumabutur/igejiwe/gun_fire_message_ringtone_download.pdfIn PDF document text
    • https://gusumumonabol.weebly.com/uploads/1/3/0/7/130775475/9244998.pdfIn PDF document text
    • https://biwomewiwuxe.weebly.com/uploads/1/3/4/1/134131409/wiwuw.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
    • https://s3.amazonaws.com/vukusa/65983503910.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/hamilton_beach_easy_reach_convection_toaster_oven_reviews.pdfIn PDF document text
    • http://jugixumob.rf.gd/vufozigomatif.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/slack_private_conversation.pdfIn PDF document text
    • http://pufagaduvamoj.rf.gd/10485975491.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_off0000c76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC76D 5364 bytes
SHA-256: 6caafbd81c09b0ff198e16f826c2052de4ca5b234c97290b98de852026ab6dea
font_01_sfnt_off0000d9d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D1 9596 bytes
SHA-256: 45df303f92c56baac344cfbbd8ed0a23d7c6be8f328376b3b67fb6900b6fb658
font_02_sfnt_off0000faa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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