Malicious PDF — malware analysis report

Static analysis result for SHA-256 0354c5dc318c7e29…

MALICIOUS

PDF

48.3 KB Created: 2020-10-21 07:27:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 85849d9b9ee3b64e5384e8868e50dc74 SHA-1: c1a3592f4d14224524f1d52c351c62315d787c75 SHA-256: 0354c5dc318c7e29be26b184e5d6ed262b12dba19581d4880afbed83e6550854
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.club/123?keyword=determinismo+e+liberdade+pdf In PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/tigugek.pdfIn PDF document text
    • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/xawixaravoniv.pdfIn PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/wafujezobomuxob.pdfIn PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/6988635.pdfIn PDF document text
    • https://relogeseji.weebly.com/uploads/1/3/0/7/130739887/naniwazoxudanekixijo.pdfIn PDF document text
    • https://tevitoretej.weebly.com/uploads/1/3/2/6/132680933/nevobizewugojow.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/17be42a4-5bcf-44f4-a851-3ece0233a13e/ocarina_of_time_gba_rom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b6db74c-0da6-44a1-95bb-7e9c97408b2f/bimosogoxag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6ad1ac0-bfcd-4663-aafd-22d299656864/far_cry_4_interactive_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/6539/3319/files/nuranazizonukid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6325/3409/files/xulokoxilosezezojo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42499907-5314-411e-acad-7a7083cb3bf9/french_plan_xvii.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a99a93b6-0ec8-461f-80da-67cd5c2f2963/namosisubawivepul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b350c61a-2342-47d2-a638-a4bd1add384d/44225699599.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9eecba57-73e3-4a1b-bfca-d747a4afa1ee/gerivevu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/494390f3-8bc8-4d7e-aced-03a1258c67ec/nobivadoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed1b17ac-2a67-4c8e-b0fa-6fc77284a7df/velluvachi_godaramma_video_song_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c80952b-990a-44ef-8ea2-64619cb115d0/95570327791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ccbd61a-8b8b-4487-8461-82da2cc55732/wurukomifotelena.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_off00007abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABF 5324 bytes
SHA-256: 3f20e84e84c48fa09ce8675f410addddd774a05fed3c6d8ac9e3823da10009f7
font_01_sfnt_off00008cb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB9 12424 bytes
SHA-256: e3f04f6cecea043d684288c517e676530e79e15148bb8dead43b51d321647c33

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