Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1c5418c89a9aad…

MALICIOUS

PDF

72.3 KB Created: 2021-02-27 08:26:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d86dc6f62ffc561da5991929cace1046 SHA-1: 98147bcd51c8b5b3c21f5619bb86d20a438be75d SHA-256: ff1c5418c89a9aad56826acd63353f73da2eee6c052741e1927ae4dd7806fcc6
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://midufefew.ru/award?keyword=the+hour+that+changed+the+world PDF link annotation
    • http://vawadofofasip.getenjoyment.net/shortcut_keys_in_ms_word_2007_from_a_to_z.pdfIn PDF document text
    • http://electorat.org/85039149985hb6gp.pdfIn PDF document text
    • http://bonenipani.22web.org/how_to_get_cognitive_behavioral_therapy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_601f03a5660ba.pdfIn PDF document text
    • http://bluebadgeapproval.com/is_fitbit_on_sale_anywherepqwzx.pdfIn PDF document text
    • http://cabinetsop.xyz/spanish_to_english_vocabulary_worksheetsoz6vb.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/cancionero_argentino_para_guitarrazfobg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420240/normal_601fa7b97182a.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/hhhiDeR/53890088893.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/cartilage_and_bone_histologyqorcf.pdfIn PDF document text
    • https://cdn.sqhk.co/purilusevike/iidfjc8/29201539349.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zunizififuve.epizy.com/21199378341.pdfIn PDF document text
    • http://pageziwakuvagu.epizy.com/20275224281.pdfIn PDF document text
    • http://kagokonutuvep.epizy.com/appearance_crossword_worksheet.pdfIn PDF document text
    • http://relurifiluxel.epizy.com/41904265313.pdfIn PDF document text
    • http://gipebevu.atwebpages.com/clases_de_comunicacin_para_segundo_grado.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_off0000e077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE077 5064 bytes
SHA-256: cf96f22d5555d8373a15037e41d3905d74f0861aff69ee1722472e4261e77919
font_01_sfnt_off0000f1b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B5 10192 bytes
SHA-256: cc153d8eb3dec01bab217cfb2a0e71a38471a87d484eb91bb556a8bf0665e74e