Malicious PDF — malware analysis report

Static analysis result for SHA-256 67741612cd43a4d6…

MALICIOUS

PDF

76.2 KB Created: 2021-02-06 22:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2c6b32736494504abb4dd6ac7c02b7ad SHA-1: 29a2cf99a8e69e18e7f37f981342d3a75aadb89e SHA-256: 67741612cd43a4d62d789e84fc538e4a1aa0fa31b41ae4096b510a969c63efec
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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://yafferge.ru/wb?keyword=hormonas%20antienvejecimiento%20pdf In PDF document text
    • https://cdn.sqhk.co/jezuleku/jcjfchh/memodanopuzopezomadej.pdfIn PDF document text
    • http://gallery-shop.site/19909608405znfda.pdfIn PDF document text
    • http://wofirulufe.iblogger.org/kenyan_passport_application_form_washington_dc.pdfIn PDF document text
    • https://cdn.sqhk.co/vozumolajaw/jEKghie/make_ice_cream_without_half_and_half.pdfIn PDF document text
    • https://cdn.sqhk.co/kinanekoxo/eib2Mij/sniper_3d_assassin_shoot_to_kill_cheats_iphone.pdfIn PDF document text
    • http://mikrotikwizard.com/44032510812y383i.pdfIn PDF document text
    • http://mon-cmbretagne.best/presidentes_de_mexico_en_orden_cronologicosmbj5.pdfIn PDF document text
    • https://cdn.sqhk.co/nugunexinazo/Hyierjh/66676361359.pdfIn PDF document text
    • http://xivagoz.22web.org/movies_like_love_rosie_yahoo_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://komujawabajufob.rf.gd/cartoon_dog_images_free.pdfIn PDF document text
    • http://notijopozij.epizy.com/28376646247.pdfIn PDF document text
    • http://tezipibuboxigo.epizy.com/55304964808.pdfIn PDF document text
    • http://zuniguvip.epizy.com/divert_calls_to_answer_phone_iphone_6.pdfIn PDF document text
    • http://fivamoxopel.epizy.com/nozogudiv.pdfIn PDF document text
    • http://zozusanom.epizy.com/29430440405.pdfIn PDF document text
    • http://nuxumejaxumem.epizy.com/ethiopian_music_video_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/excel_vba_copy_html_table_to_worksheet.pdfIn PDF document text
    • http://komusera.rf.gd/bike_racing_mania_mod_apk_android_1.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_off0000eb12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB12 5368 bytes
SHA-256: fb1b6b2afb5dd80c3fb3cacabba470a9e007830c10b4efbe4e577c0df74cc543
font_01_sfnt_off0000fd43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD43 11332 bytes
SHA-256: cfb6c9db8ace1f95a2f3c3506bbc3801bb330d8af68df179fec31acd60f2d7ed