Malicious PDF — malware analysis report

Static analysis result for SHA-256 2acf82004a003ba0…

MALICIOUS

PDF

77.8 KB Created: 2021-02-20 15:42:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 084b9d34d655c6fe55bc46f79e459a4e SHA-1: 85a2af7c22fffaf7507cbfff183ea998003415a6 SHA-256: 2acf82004a003ba088f615a1207780e33960b8a88c1606cb2618605bc2fd4289
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/strik?utm_term=foxit+phantompdf+printer+download PDF link annotation
    • https://tigepofawi.weebly.com/uploads/1/3/1/0/131071288/mefofaxumirezo-nafegefog-robiwawomiwomo.pdfIn PDF document text
    • http://lixuzixewufixib.66ghz.com/bully_math_3_answers_xbox_360.pdfIn PDF document text
    • http://jewidexomemivib.iblogger.org/what_does_607_mean.pdfIn PDF document text
    • https://fisenekapiwu.weebly.com/uploads/1/3/1/4/131437930/pegiwaxixow-wanefep.pdfIn PDF document text
    • http://basofeveku.iblogger.org/drone_camera_buyers_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gimemos.epizy.com/44183158570.pdfIn PDF document text
    • http://ketened.rf.gd/filemenojigowuf.pdfIn PDF document text
    • http://rujunigowe.epizy.com/zabujijonivoworejuk.pdfIn PDF document text
    • http://godavuvexo.epizy.com/wiloso.pdfIn PDF document text
    • http://refedeto.epizy.com/50397792602.pdfIn PDF document text
    • http://xakizuwebinul.rf.gd/anaphylaxis_management_guidelines_nz.pdfIn PDF document text
    • http://bedipowatukefov.epizy.com/cisco_nexus_9500_line_card_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/44241140537.pdfIn PDF document text
    • http://vurasoda.rf.gd/electrician_exam_paper.pdfIn PDF document text
    • http://fedukiz.epizy.com/double_bed_fitted_sheets_target.pdfIn PDF document text
    • http://sijurajogo.epizy.com/15194012937.pdfIn PDF document text
    • http://pirapisanuton.epizy.com/the_treaty_of_guadalupe_hidalgo_resulted_in_brainly.pdfIn PDF document text
    • http://bejuxufuvojofa.rf.gd/86529375337.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_off0000f2e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E5 5220 bytes
SHA-256: a5c3d9ce9b72eebbad0cd4aae6bb03245e5c57df8bbbcb92b6de8323c8ffbb24
font_01_sfnt_off00010494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10494 11112 bytes
SHA-256: 63f2eb369a167730ebdbb8690b4ce01ab98563a8ff9ae337c38f422c3aee2faa