Malicious PDF — malware analysis report

Static analysis result for SHA-256 791609bab1399b5d…

MALICIOUS

PDF

67.7 KB Created: 2021-03-04 16:54:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 21aa889fdf4a26b97e4256eccc4aa44f SHA-1: 886124a1e45bae978e336bdb0e053d559a0ec804 SHA-256: 791609bab1399b5d7da6eaacf4c04b5c7accf940bc6b3d0f848227e73ffd3512
184 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
  • 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://dafemum.ru/123?utm_term=nordictrack+t5zi+manual In PDF document text
    • https://cdn.sqhk.co/fenazijeguk/bgdlkgg/vatela.pdfIn PDF document text
    • https://cdn.sqhk.co/linerutinew/3zijaji/vivonavinutuxali.pdfIn PDF document text
    • http://uscovidcharts.com/35887012894dxi6l.pdfIn PDF document text
    • https://vipukawolatu.weebly.com/uploads/1/3/4/4/134486161/modegavasitivikijat.pdfIn PDF document text
    • https://mokenexub.weebly.com/uploads/1/3/4/4/134478104/4ec112a52.pdfIn PDF document text
    • https://cdn.sqhk.co/nikajovefer/jjGighb/dog_run_fence_ideas.pdfIn PDF document text
    • http://freds.space/bridges_math_kindergartenyrxhc.pdfIn PDF document text
    • https://tizojutatow.weebly.com/uploads/1/3/1/4/131406606/c810de2666ae6.pdfIn PDF document text
    • https://gogalafubixuvu.weebly.com/uploads/1/3/4/6/134642314/gipinoke.pdfIn PDF document text
    • https://xuvuvigaxopezut.weebly.com/uploads/1/3/4/7/134721928/denif.pdfIn PDF document text
    • http://russianstravel.ru/96510025651mc9rp.pdfIn PDF document text
    • http://wopexobow.mywebcommunity.org/powaxafugov.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/demonstrative_adjectives_worksheets_4th_grade.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pivimufe.atwebpages.com/lokutogigejemar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eeb5d646-9cec-4b00-95c7-3e7842dcec8b/laduseser.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5018eeac-3305-45ec-a7cc-e4cb1d78b726/chamberlain_model_wd962kev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ca98cae-03c4-48f7-953c-665aea9fa6f1/46752956739.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa5754be-acc6-44a7-9fd2-673672d88d65/the_science_of_mind_management_by_swami_mukundananda_review.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_off0000cff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFF6 5112 bytes
SHA-256: 453e1242ce40f7e4634076c68bdcfc1b3a8a6ab38662d7d6c5497cdaccc4669c
font_01_sfnt_off0000e15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15B 9648 bytes
SHA-256: eb062d2d1a6a436dac48b29e9e6e42fdafa5937e825b5687dc3f7c326e8bd8ee

Open this report in the interactive analyzer, or submit your own file for analysis.