Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cabbec3afbcd97a…

MALICIOUS

PDF

70.9 KB Created: 2021-02-25 19:58:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0194dd5e67fd47d5c56f499b241b11b3 SHA-1: a0af01aa33a0ecd94ce07310c73671472a9d8198 SHA-256: 5cabbec3afbcd97ad7391093abbcf542fd9db4bb61d71e43829dc693901a6d44
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/award?keyword=how+do+i+reset+my+samsung+bluetooth+soundbar PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452206/normal_5ff8ebea95ac1.pdfIn PDF document text
    • http://pornbustyvids.com/bicentennial_man_piano_sheet_musice6hiv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465142/normal_5feb8323500c7.pdfIn PDF document text
    • https://mojapilujo.weebly.com/uploads/1/3/0/9/130969316/9391039.pdfIn PDF document text
    • http://natiral.space/into_the_woods_scorezgp6e.pdfIn PDF document text
    • https://cdn.sqhk.co/bunigenozav/Wghemhb/house_designer_fix_flip_apk_day.pdfIn PDF document text
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/lonub.pdfIn PDF document text
    • https://basavorulifa.weebly.com/uploads/1/3/4/8/134899730/e49278cb0c8f2c5.pdfIn PDF document text
    • https://fuwofinirofen.weebly.com/uploads/1/3/1/6/131637723/bc455af02f35a65.pdfIn PDF document text
    • http://amaryllis.space/wutowemuzasiwi3xqmo.pdfIn PDF document text
    • http://wwbook.org/maquinaria_para_el_cultivo_de_arroz_en_colombiavq5t1.pdfIn PDF document text
    • https://poturifipejo.weebly.com/uploads/1/3/4/7/134767967/8539334.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/jigezilor/job_interview_questions_and_answers_examples.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_off0000d9e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E1 5532 bytes
SHA-256: 2859439b66a97c5254702ce41f5c0ff108d54f2a036a7ff9726b307b9d57a75a
font_01_sfnt_off0000ec91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC91 10088 bytes
SHA-256: 2cb2d92b73dc2b57ceda4cb61c3af1be65217a66ceb39b5026b3f43a67979138