Malicious PDF — malware analysis report

Static analysis result for SHA-256 dacb2f105f2f20c6…

MALICIOUS

PDF

66.6 KB Created: 2021-02-15 14:21:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fc0a7a98ab97a740264a688ceaccf6f2 SHA-1: a9111666e76d1dfa28bf6ee4ffbd72226afc1d3f SHA-256: dacb2f105f2f20c6adc96ff7e7c617e59d5af1b95d38817d64e10cad5a57695d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=weathering+and+erosion+worksheets+for+5th+grade+pdf PDF link annotation
    • http://triple-doska1.club/327761214218jhz.pdfIn PDF document text
    • http://bavunexebiri.iblogger.org/animals_that_fly_fight_list_answers.pdfIn PDF document text
    • http://gonzo-3d.com/kenmore_he2_plus_king_size_capacityfw691.pdfIn PDF document text
    • https://setunifajufin.weebly.com/uploads/1/3/5/9/135989633/1046702.pdfIn PDF document text
    • https://xisidugaboker.weebly.com/uploads/1/3/4/4/134436298/b0b5b59d6dece9.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/hggczjb/laziwawisoniga.pdfIn PDF document text
    • https://watuluvijigu.weebly.com/uploads/1/3/3/9/133997483/8c99a0.pdfIn PDF document text
    • http://silvanozito.online/oxford_dictionary_for_java_mobile_freektyml.pdfIn PDF document text
    • http://unityfree.xyz/15832730722ytdyx.pdfIn PDF document text
    • https://cdn.sqhk.co/jegisizozul/EM9jdtF/the_wonder_weeks_book_free_download.pdfIn PDF document text
    • http://testertumentum.space/zajoxe16hai.pdfIn PDF document text
    • https://nizifaweneli.weebly.com/uploads/1/3/4/5/134589853/xeroronoxetago_pufoluko_wafigedat_wunag.pdfIn PDF document text
    • https://cdn.sqhk.co/dumadomizore/KhfjbJg/corporate_strategic_planning_template.pdfIn PDF document text
    • https://cdn.sqhk.co/vifejoneses/dghOBih/xexobuf.pdfIn PDF document text
    • https://fadefufogu.weebly.com/uploads/1/3/5/9/135960472/9826838.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fipomazuwasa.epizy.com/mimukavoguwoxa.pdfIn PDF document text
    • http://vazorilumi.epizy.com/41626898749.pdfIn PDF document text
    • http://xujogefup.rf.gd/chogada_tara_song_bestwap._link.pdfIn PDF document text
    • http://wukajilese.rf.gd/5883079981.pdfIn PDF document text
    • http://fafofifusa.rf.gd/npci_full_form.pdfIn PDF document text
    • http://zisikatalim.epizy.com/patewojo.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_off0000c7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C9 5564 bytes
SHA-256: 04b156a3b016cf52f806db425f30daf5f82b36c950cc7e2172868049b58f7cde
font_01_sfnt_off0000dacf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACF 9876 bytes
SHA-256: b2699715acbbd9d2df5a4adb92ab3a9c5d75d9df6c87c3d723e8c6d15af2b02c