Malicious PDF — malware analysis report

Static analysis result for SHA-256 064f4bdc363bc5f2…

MALICIOUS

PDF

50.3 KB Created: 2020-10-19 21:18:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 49c0a291829095ba89e896f3f3ea2d98 SHA-1: eb96fe10441f4435702f1d11872d88c596d6322b SHA-256: 064f4bdc363bc5f295b270fa89317ede386b1ece7c13b156f8e83f663a5a1272
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/123?keyword=pubg+zeroing+distance+guide In PDF document text
    • https://nogafuku.weebly.com/uploads/1/3/2/8/132815296/65bfaa.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/7271212.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/7373486.pdfIn PDF document text
    • https://nutolifawivu.weebly.com/uploads/1/3/1/4/131437776/nusukepijet.pdfIn PDF document text
    • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/riben_gudodow.pdfIn PDF document text
    • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/nazapewivobiko_tinugewolezoso_losiwexatupak.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/lafukanunimil.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/domibizimu-xapawefe-dipumesegum-tufesuv.pdfIn PDF document text
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/8735018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_5f889b9698ede.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369908/normal_5f8bf59e67543.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8742c8798f9.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/3a120509-e699-4441-91b2-22128c51fb7d/tapesowobewafegonuje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9aa3bd4-72cf-4b13-a552-b60434eedd74/29297898228.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b33a866-7562-49ef-9fa3-a27ec0380777/1939493449.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c713543-ce83-418e-9bfd-7f9fda0b0e05/morogosezurasosotezizeka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d9e7aee-9be6-4502-bd79-4e7703eb149c/10865812640.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b51c306-cc23-4473-9b0d-9022b9bd45e5/pamoduvibow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83c6375a-89a0-4595-ab0f-cfd30451eb8b/92537574952.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d640f83-8233-4a00-a74e-04cd094447e5/5152535568.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ad67754-d644-402c-b328-adfbbd13461e/gonewatodomajuzarobizaga.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_off00006fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEA 5148 bytes
SHA-256: f85f6bc1e3d692fce04930dbe8dde6a91adb2a16b535403ae410bf9625fe3cfc
font_01_sfnt_off00008162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8162 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off000089f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F0 10112 bytes
SHA-256: 3243a961dd603e579201d07469e1e0b95cceb0691fc43a8a19474436f23852ba
font_03_sfnt_off0000aca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACA3 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34