Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a019683bb503891…

MALICIOUS

PDF

80.1 KB Created: 2021-02-28 04:48:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 157be8bfc7e3ed76d59eadb401e59d55 SHA-1: 004c2c379dee32ff869678ce2a3f577d433eeea4 SHA-256: 6a019683bb5038919d690ab7b59d118c0f45f33b03a5a2ab72d5d07e7fe00eed
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=how+to+screenshot+on+acer+laptop+aspire+one In PDF document text
    • http://avtoshtorki.shop/cyberghost_vpn_premium_mod_apkdxi3e.pdfIn PDF document text
    • http://xawinagolagiju.iblogger.org/essay_plan_template_free.pdfIn PDF document text
    • http://rutidewebatodug.iblogger.org/rojilubenemuzumezokali.pdfIn PDF document text
    • http://remont-kholodilnikov.website/jabetibltnf.pdfIn PDF document text
    • http://evilcheats.fun/calage_d_un_arbre_a_came_preparesehjf.pdfIn PDF document text
    • http://garirixis.22web.org/72685794814.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/iigcicv/fall_out_boy_clothes.pdfIn PDF document text
    • http://tatajosak.22web.org/alcohol_detox_guidelines.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://getetir.epizy.com/frankenstein_mary_shelley_summary_chapter_9.pdfIn PDF document text
    • http://sipawas.epizy.com/what_is_the_best_rig_for_flounder.pdfIn PDF document text
    • http://zimemotom.rf.gd/boramimolosovufageju.pdfIn PDF document text
    • http://kukelemut.epizy.com/remiwurinuxosarix.pdfIn PDF document text
    • http://bevevekafoli.epizy.com/beko_oven_user_guide.pdfIn PDF document text
    • http://zasuzutan.rf.gd/42341959710.pdfIn PDF document text
    • http://rereroma.epizy.com/raxepetixijozunaden.pdfIn PDF document text
    • http://jidowadosul.epizy.com/what_are_good_workouts_for_basketball_players.pdfIn PDF document text
    • http://sagovonopa.rf.gd/ib_business_management_revision_guide.pdfIn PDF document text
    • http://mapureju.epizy.com/best_free_match_3_puzzle_games_android.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_off0000fdc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC5 5076 bytes
SHA-256: 7333c29b4728d158f843ab43e01ab6d7a26290aa9507b7e68c5f7a5d9545fe16
font_01_sfnt_off00010f0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0F 10596 bytes
SHA-256: 40061a1f63b13421efb7bd663c670267175340cb710570c395866c1a4ff03855