Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd676eb66006a09…

MALICIOUS

PDF

65.7 KB Created: 2021-02-14 12:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 07471b2dd01173ac8b814c631e432b1a SHA-1: 0bd088b4202b2ae34b87c2570f1b16facdbcb4f3 SHA-256: 3fd676eb66006a09f37cc0d3a6db0195b2f2b9dfa796f27a05184ed27b9749ab
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=school+district+170+employment PDF link annotation
    • https://kogezuzoxato.weebly.com/uploads/1/3/1/0/131070880/845f212a88e3cc7.pdfIn PDF document text
    • http://lijamerogavex.iblogger.org/76927448635.pdfIn PDF document text
    • http://jegewuzewan.iblogger.org/knight_equipment_guide_ragnarok_mobile.pdfIn PDF document text
    • https://jifalutisapore.weebly.com/uploads/1/3/4/7/134772579/4726427.pdfIn PDF document text
    • http://sipamuxagiporen.iblogger.org/ruwanujexexus.pdfIn PDF document text
    • https://pepizowa.weebly.com/uploads/1/3/2/7/132711999/564a2fa.pdfIn PDF document text
    • http://gidepel.22web.org/film_ajari_aku_islam_sub_indo.pdfIn PDF document text
    • http://wuvevaj.iblogger.org/run_spell_check_on_protected_excel_sheet.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/mukut/bitdefender_mobile_cracked_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/beletafepuresokulujubaja.pdfIn PDF document text
    • http://kisetifanuxutol.epizy.com/pukewinan.pdfIn PDF document text
    • http://gonuwufif.epizy.com/gapizirijodepipinarilamu.pdfIn PDF document text
    • http://sobakijej.rf.gd/82674302931.pdfIn PDF document text
    • http://jisuwexadik.rf.gd/minobi.pdfIn PDF document text
    • http://badokelo.rf.gd/35941344693.pdfIn PDF document text
    • http://dizoduji.rf.gd/21678223588.pdfIn PDF document text
    • http://ponenasese.epizy.com/92590313806.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/60051133295.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_off0000c3f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3F0 5584 bytes
SHA-256: b00a3bf10e2d2d95c4b744698c030cf2ca39be59d7dde573c1e458f60ddd5ec3
font_01_sfnt_off0000d6d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D5 10176 bytes
SHA-256: 8a6afa3db48b3f37bdbfcfc925ed71c1bd17ee0574d4fd21b93beb7323a74597