Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd985842cfdca89…

MALICIOUS

PDF

70.3 KB Created: 2021-03-02 16:18:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 4772fa8c14bbbf7cc2238ef61d53f968 SHA-1: 7d86fac87462f9923afd5ab8652cccf0f23dcb7d SHA-256: 1fd985842cfdca892c779f46734c93338c05ea3aa0bb046247aaa596389ef94b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/award?keyword=is+the+smithsonian+air+and+space+museum+open+today PDF link annotation
    • http://jemulobapamiwu.mywebcommunity.org/auld_lang_syne_lyrics_fast_version.pdfIn PDF document text
    • http://praktika-ingenieur.com/laptop_application_software_free45sr5.pdfIn PDF document text
    • https://vujilesozigo.weebly.com/uploads/1/3/4/0/134042384/pamujadikeled-pesakuvuvini-vozosav-tibuxoxukofe.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/00447b74.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/icAghmP/39431817072.pdfIn PDF document text
    • http://tanemazijafawin.medianewsonline.com/how_to_use_lg_truesteam_dryer.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/4iifkCm/dungeon_hero_rpg_mod_apk.pdfIn PDF document text
    • https://vowevabejera.weebly.com/uploads/1/3/0/7/130775986/5867708.pdfIn PDF document text
    • http://pofuxubilet.sportsontheweb.net/cannot_open_printing_preferences.pdfIn PDF document text
    • http://veduxaze.iblogger.org/24549515866.pdfIn PDF document text
    • https://cdn.sqhk.co/metajewamiva/hjgGgeE/hangout_meaning_in_telugu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xarofojufagij.rf.gd/bedingte_formatierung_excel_formel_zur_ermittlung.pdfIn PDF document text
    • http://borosiker.rf.gd/39027247046.pdfIn PDF document text
    • http://xezaretidatoro.onlinewebshop.net/percy_jackson_and_the_olympians_books_free_download.pdfIn PDF document text
    • http://rekabalukog.rf.gd/basic_economics_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/puverexelos.pdfIn PDF document text
    • http://jasixinupij.epizy.com/86295766001.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_off0000d596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD596 5320 bytes
SHA-256: f86964349d8f088b4d0caf803e1b0ee5b260a9d703d7a3430a92a9cf25499ff3
font_01_sfnt_off0000e785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE785 10644 bytes
SHA-256: e09d6eced7dc952d62c42b239642216a07cb5a7376a05780c291d985b435ccaa