Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d57ad069c68dae…

MALICIOUS

PDF

42.8 KB Created: 2020-10-12 05:52:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 992f2cdf636c8242f38909c38d826d6b SHA-1: ab43322cb01611c63719a6de9f5adb16953be496 SHA-256: 62d57ad069c68daeafa589f264ea1583c145de5f29c36560856b3bb5b26d37bb
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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://gettraff.ru/pify?keyword=wild+garlic+plants+for+sale+ireland In PDF document text
    • http://dusij.schoolofwong.com/uploads/1/3/0/9/130969723/waxogati.pdfIn PDF document text
    • http://files.owleyesphotography.net/uploads/1/3/1/3/131382243/toleririniguko.pdfIn PDF document text
    • http://ginule.franciscanministryofpeace.com/uploads/1/3/0/7/130775889/fuditaxibijat.pdfIn PDF document text
    • http://files.3becoaching.com/uploads/1/3/1/4/131454126/bizeri_baralo_gevupijuku.pdfIn PDF document text
    • http://notaf.gymfreaks.net/uploads/1/3/1/3/131381886/mafaganazotuvod-musulo-vixunifuxadabi-kifibufiwud.pdfIn PDF document text
    • https://site-1043520.mozfiles.com/files/1043520/mimasewoze.pdfIn PDF document text
    • https://site-1041499.mozfiles.com/files/1041499/58089056012.pdfIn PDF document text
    • https://site-1040209.mozfiles.com/files/1040209/88225649552.pdfIn PDF document text
    • https://site-1038869.mozfiles.com/files/1038869/43228937511.pdfIn PDF document text
    • https://site-1039658.mozfiles.com/files/1039658/kunalatonaropojubes.pdfIn PDF document text
    • https://site-1039465.mozfiles.com/files/1039465/woxaresofokofenen.pdfIn PDF document text
    • https://site-1038919.mozfiles.com/files/1038919/24169009839.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/56746fb5-4e8b-4221-9c98-4bb7bcf29e00/51745051799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/160097e5-e45e-4b85-80c7-a01f1a4be7df/36437656207.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d73a3bbd-8286-45c8-aad7-cb238ca18281/72964869650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4223fc37-9e2f-42c1-baab-354679baf27d/26279786855.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33585ecb-11cf-433c-b21c-f26feabed5bb/35928565213.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_off000067df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DF 5336 bytes
SHA-256: 3267c1e2501fee7b93cb077206e0725bfa7b44559188ab535bddbd24f4ce19e2
font_01_sfnt_off00007a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A25 10592 bytes
SHA-256: b5faa24e57a065666ee67f732119538a025aff726b773d5cf0ed9472a278d1e7