Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9198dd04425bb0…

MALICIOUS

PDF

66.1 KB Created: 2021-02-25 04:25:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: ca9a258ebafd59a6ec62c29e58b99a38 SHA-1: 692f41b16eb958b82ea219c8903f84ecfde4851e SHA-256: 3c9198dd04425bb0659c7fe6deb842566919422de009fcefbe1ac9536ed46a03
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://baarspo.ru/award?keyword=minn+kota+talon+sandwich+bracket PDF link annotation
    • http://bet-info.ru/fusion_integrated_reading_and_writingq6y17.pdfIn PDF document text
    • http://blacklaser.ru/organizacion_empresarial_definiciono2ej4.pdfIn PDF document text
    • http://help-bluebadgecustomer.com/sharp_objects_shows_likezinjj.pdfIn PDF document text
    • https://zunimivivonuz.weebly.com/uploads/1/3/4/0/134017399/6454859.pdfIn PDF document text
    • https://cdn.sqhk.co/zawitagevute/r2jfiba/25733475847.pdfIn PDF document text
    • https://kuxifegofemiza.weebly.com/uploads/1/3/4/8/134865321/6339172.pdfIn PDF document text
    • http://itdiscount.pro/jbl_eon_615_bluetooth_softwarebiij8.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/jggh0gd/13995741416.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/Jtkhhig/4363325653.pdfIn PDF document text
    • https://cdn.sqhk.co/timugulirebu/iohiigI/xotomuxuzagi.pdfIn PDF document text
    • https://mezinetoxapim.weebly.com/uploads/1/3/4/8/134887379/mibidodojowulob_sigogexed_fidepo_xepipejuketuv.pdfIn PDF document text
    • https://cdn.sqhk.co/dasisogi/jjhjd2F/xebimekadomeseludowebiz.pdfIn PDF document text
    • https://zogowejodumuf.weebly.com/uploads/1/3/0/7/130775171/zitodere.pdfIn PDF document text
    • https://gopopozemilin.weebly.com/uploads/1/3/0/8/130874381/gafikajeximu.pdfIn PDF document text
    • https://cdn.sqhk.co/jogujufuza/bhh0Khd/dragon_quest_switch_demo_save.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/lakujusitejojet/are_most_functional_groups_polar_or_nonpolar.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/komapikoxupamazev.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/opportunistic_infections_treatment_guidelines.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_off0000c58a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC58A 5328 bytes
SHA-256: b8239d7606d7983ace988839f9f708a139d5aaabaed9f7a717901d95dff4051a
font_01_sfnt_off0000d7c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C1 10020 bytes
SHA-256: 43d9fd55211a6d29ef2c39eb58408849e6846e933fb246540ef9856aa1d97ffb

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