Malicious PDF — malware analysis report

Static analysis result for SHA-256 716c0408b776abe9…

MALICIOUS

PDF

68.2 KB Created: 2021-02-26 07:26:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ce3518ac3b735c48e7420d76efc42c9a SHA-1: 235a3f434f1d98ef6d70d4fd545cba8dbe717689 SHA-256: 716c0408b776abe9e88460bc531e71b0d28786e72d2ba851a9f8fa36610a7dee
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=chaos+head+noah+endings PDF link annotation
    • https://sarajifig.weebly.com/uploads/1/3/2/7/132710715/62e75bbd847.pdfIn PDF document text
    • https://jarivilil.weebly.com/uploads/1/3/4/0/134012847/3815445.pdfIn PDF document text
    • https://cdn.sqhk.co/lexoxuxoluvi/r1zjchc/army_pt_standards_sit_ups_male.pdfIn PDF document text
    • https://mupexopuwes.weebly.com/uploads/1/3/4/7/134722910/26c828238618c73.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/briggs_and_stratton_500_series_158cc_carburetor_adjustment.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416669/normal_60132c37b3e85.pdfIn PDF document text
    • https://pudavupotel.weebly.com/uploads/1/3/5/3/135335197/jawagixobemibi-tolabegaguzaja-somedu-xesikez.pdfIn PDF document text
    • http://bomaduworofa.medianewsonline.com/kenneth_cole_reaction_watch_band_adjustment.pdfIn PDF document text
    • https://pegufozexak.weebly.com/uploads/1/3/5/3/135317465/foturesozuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450876/normal_6035edafa349f.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/putipafiwuv.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/how_do_you_calculate_motor_efficiency.pdfIn PDF document text
    • https://cdn.sqhk.co/zuboxizip/ege4ifJ/real_city_car_driver_crazy_games.pdfIn PDF document text
    • https://xetakafiso.weebly.com/uploads/1/3/1/8/131856826/tajelibewin.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/sinamozagemoger/intel_high_definition_audio_driver_windows_10_update.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/how_to_become_an_information_systems_manager.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/baxojufubuzawagarananet.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_off0000d04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD04F 4864 bytes
SHA-256: 8472585cc0411db22b09840455972d0ba5d20e9e48271f989a9ce4f350d3641b
font_01_sfnt_off0000e0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D1 10352 bytes
SHA-256: 520a2c3f765229806fd0119904c2a429d6ec28dfb891734f6bfc8adb5ddbb3c4