Malicious PDF — malware analysis report

Static analysis result for SHA-256 6439c27e0d87abfa…

MALICIOUS

PDF

44.8 KB Created: 2020-11-01 17:04:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 05908e20f05d977115f2bb9182fbcfdd SHA-1: 66d79f5fc410d7e89a32c5c0700879e849aa1505 SHA-256: 6439c27e0d87abfae4fd0f6dde4aa44fb46a61731d9d0f39e56bfeeb72e92a41
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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/123?keyword=bet+106+and+park+2001 In PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/vopisovaz.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/sokilijaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367944/normal_5f8ca934d8616.pdfIn PDF document text
    • https://rogubadivuna.weebly.com/uploads/1/3/4/3/134337887/lopumimalagujujabu.pdfIn PDF document text
    • https://furureseseruwa.weebly.com/uploads/1/3/4/4/134481841/nadujibalure_wekaxo_datefuv_sowoluzomuzezi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369302/normal_5f897899a844b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418762/normal_5f9ec2778b725.pdfIn PDF document text
    • https://zuvagenujak.weebly.com/uploads/1/3/4/4/134454716/7046858.pdfIn PDF document text
    • https://leputixoted.weebly.com/uploads/1/3/2/6/132683438/edb8317ddba.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://s3.amazonaws.com/mijedusovineti/85353999664.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/el_suicida_alfonso_reyes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f5daaa6-a702-4316-bc4c-c7ac8b867ef9/90678660818.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bdc37ce-39f9-45a0-b425-e2cfa5ccf899/57643609441.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6c8e492-e1ba-42e0-8f04-d6c2dcc13513/79042272064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f672a18-eeea-47fc-8896-2878a2986392/ghost_rider_artist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4738e05-f834-4adf-b7a9-e03c5d111c06/10141128783.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5473 4252 bytes
SHA-256: 0596d05edd8f57102b310a48899ee8157d0cf3f1fc524ec7d11ef67dde9f8ea5
font_01_sfnt_off00006369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6369 4964 bytes
SHA-256: b15efa4545cfb5a0ef273ea234430db733d3f03007d96d4a0351f9d35a0890b7
font_02_sfnt_off00007447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 10408 bytes
SHA-256: 29262a211ef45502fa070c3bc5e4f39421afdfbdb47f53444489160d9ba64a8b
font_03_sfnt_off000097b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.