Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f370a3f6af7ffa8…

MALICIOUS

PDF

43.4 KB Created: 2020-10-25 19:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 1b36c40a894a65acd80cb8721f5de2c4 SHA-1: 521582264243f28b991bac6a169f05ccd19669e1 SHA-256: 6f370a3f6af7ffa8fbb8898f347c2e743f232955d30ecb857bdedf1599fd0af2
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.me/pify?keyword=probleme+localisation+google+maps+android In PDF document text
    • https://dijumigomeruke.weebly.com/uploads/1/3/4/3/134309809/24cac51ed8.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/6069273.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/5d6f2da.pdfIn PDF document text
    • https://famotufenimuz.weebly.com/uploads/1/3/4/1/134132127/toripisasunim.pdfIn PDF document text
    • https://bidutujube.weebly.com/uploads/1/3/4/4/134403342/jewifezawosojo.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/fd57c.pdfIn PDF document text
    • https://vadutivolojogo.weebly.com/uploads/1/3/0/8/130813650/00c4cc104857.pdfIn PDF document text
    • https://wunimebi.weebly.com/uploads/1/3/4/3/134361225/jabasutut.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/6286622.pdfIn PDF document text
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/2028796.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/8355081.pdfIn PDF document text
    • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/gomanezibarubagujik.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/59d3df3d-ff15-4cd2-8701-35caee83dc4b/magic_iso_serial_crack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33bb7bec-1046-4fee-8f94-693cfc2fc278/77850676585.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5920df0f-c749-4898-8fc3-90d01ffd99a1/fun_math_brain_teasers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b2eea09-633c-4494-9e17-054984c395e0/mitobiwuroz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c47d674d-224b-47f6-9fe8-fad88a48d4fa/59711535339.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edccfcd9-de1d-4422-b5ca-b981ad38d7eb/53781306180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8db0d9a-31b5-4a87-b04f-38b144276006/ill_mind_of_hopsin_7_mp3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cc0b586-41d1-4d93-bbc9-e6ef9fdc90f2/37338036091.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35956e48-8682-48eb-b900-6fecce45d400/nuzonupokoruzopu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a725cf9e-756d-4d6c-82c8-04cc4466652c/68220134246.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_off00006b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B24 5536 bytes
SHA-256: 6e5c46e4897ce5e760b243751eb988f9385078dc9c2904a21d898fb162db1e9f
font_01_sfnt_off00007dc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC6 10072 bytes
SHA-256: b030c3068fa302211f291d4a9f96920e60acb73789c40ea54b6e61ca8db7abc9

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