Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc030b06779603f6…

MALICIOUS

PDF

44.1 KB Created: 2020-10-11 16:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3d957610bf4ab35278acb706ae7e54ff SHA-1: bf0b29410dada3a67f297d5a1dfec5b6bac09c73 SHA-256: bc030b06779603f685eb3e06d9514deed04275d45b4a9ec5a4ae006674b72523
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://ttraff.link/pify?keyword=war+of+1812+lesson+plan+high+school In PDF document text
    • http://files.petermichaeldavison.com/uploads/1/3/1/4/131406226/cc40d.pdfIn PDF document text
    • http://files.movimentomarianobetania.org/uploads/1/3/2/8/132815004/saziwexavotitomake.pdfIn PDF document text
    • http://files.eatonpropertiesllc.com/uploads/1/3/0/7/130775813/1748058.pdfIn PDF document text
    • http://files.newpathway.co.uk/uploads/1/3/1/0/131070476/78cc6a56d34d6.pdfIn PDF document text
    • http://files.sydneysoapmaking.com/uploads/1/3/0/7/130739312/xepimek.pdfIn PDF document text
    • http://xuvibanof.hp3-unlockingpotential.com/uploads/1/3/1/4/131408027/5db672f06.pdfIn PDF document text
    • http://xunixivi.ozgurince.co/uploads/1/3/1/8/131856543/tuguzutanoxok-jafis-lutirikatenuvon.pdfIn PDF document text
    • https://site-1039840.mozfiles.com/files/1039840/71353144508.pdfIn PDF document text
    • https://site-1041614.mozfiles.com/files/1041614/fugaboxijeregorewemedim.pdfIn PDF document text
    • https://site-1037192.mozfiles.com/files/1037192/tonagukufegavoted.pdfIn PDF document text
    • https://site-1036921.mozfiles.com/files/1036921/fameral.pdfIn PDF document text
    • https://site-1036716.mozfiles.com/files/1036716/bonisakowa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/5c55b75a-2b4a-4d33-8b0f-f18ea88f7361/wifolezebojetiseruzid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbbb671a-169c-469b-b8a3-477ca14ec39f/toxiguwegubaluxajametuxuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0273272e-bea7-4279-abbc-c79b434f046f/fitik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/096aea38-0188-4d9c-811e-e7cf0a10ace5/23556998313.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6094 5376 bytes
SHA-256: 49a6be18e236891200d2db97870392dffa169a95cc150624e0bfd8d0d6220caa
font_01_sfnt_off000072d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D8 10008 bytes
SHA-256: c3fe538490f6e400c63d15c8075ed5d1312c49d0d5de9b1f162e7b69a3fcd469
font_02_sfnt_off00009508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9508 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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