Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd3330e368e8af8…

MALICIOUS

PDF

74.6 KB Created: 2021-02-22 21:24:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: df6b249908332ba6e2f6c5cd7cd04a85 SHA-1: 157cd4e6af40735d0e9a24d63c469a6fd76784b2 SHA-256: 9dd3330e368e8af8c2d0c6c9f23b1b4c6ba00a183da9d4e7c425e94b8ffee6eb
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://seumenha.ru/wix?keyword=weather+chicago+hourly+60634 PDF link annotation
    • http://shtangelkipokupkiitd.online/sedoxupiwoduduvo3zgw.pdfIn PDF document text
    • http://fb-copyright-help-from.com/whats_the_fastest_way_to_learn_koreana2j0n.pdfIn PDF document text
    • http://zodusen.22web.org/designated_survivor_season_1_episode_8.pdfIn PDF document text
    • https://cdn.sqhk.co/kevamubeminu/dpOh8R8/rotator_cuff_strengthening_exercises_with_weights.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/hbjhthf/wagifosudosefad.pdfIn PDF document text
    • http://qrastenmap.online/werewolf_profile_picskgfsr.pdfIn PDF document text
    • https://cdn.sqhk.co/ranofakon/wzFegjp/crazy_for_speed_mod_apk_free_shopping.pdfIn PDF document text
    • http://albatros-trans.ru/crosman_serial_number_lookuph2lh0.pdfIn PDF document text
    • http://rukozhop-guide.com/chambers_europe_guide_20192zzqe.pdfIn PDF document text
    • http://mail-autoscout24.net/filemaker_server_16_installation_guide6g52r.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/pgdjcgv/telegram_app_download_apk_for_desktop.pdfIn PDF document text
    • http://detubob.22web.org/7360349372.pdfIn PDF document text
    • http://legrand-spb.ru/calderas_peisa_duo_manualylsz2.pdfIn PDF document text
    • http://it50disconto.info/bombardier_transportation_uk_ltd_annual_report1re9x.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/dowesitobuga/auto_loan_calculator_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/xofel.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/bejogoduxunedabajolijev.pdfIn PDF document text
    • http://pinakebe.rf.gd/backlight_sheet_density.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_off0000e7b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B7 5544 bytes
SHA-256: 0775e8ec1de1bd8e3b6e24c1068a03e96eb3e13d97e615402f31231184f281ec
font_01_sfnt_off0000faa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA9 10240 bytes
SHA-256: 7a15dce67947a750320a2142346ee43d18fadf22454e08ff42bf799ef3facc6e