Malicious PDF — malware analysis report

Static analysis result for SHA-256 4332a805a406034a…

MALICIOUS

PDF

44.1 KB Created: 2020-11-09 06:36:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: af4a21b5f91416827ed013e20baf0564 SHA-1: ae9e88369e269dce3d69cf7ac838c6f0d806d001 SHA-256: 4332a805a406034a86e7299c95cfad2a1ed47fcabc8a5f73ac69467749a69f54
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?keyword=eighth+amendment+law PDF link annotation
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/9303ff67d90.pdfIn PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/f4698b929c3963.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/govorikepudago-gixidawele-wawep-xoxebilepadevu.pdfIn PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/xefini.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/90913b096d8.pdfIn PDF document text
    • https://dotigima.weebly.com/uploads/1/3/4/4/134404546/funumuravilubixeru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404121/normal_5fa8bbfee3342.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365580/normal_5f87389717122.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388274/normal_5f8e3ac76f43e.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/zerejibixupav/bututovukixixedeb.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/bruce_benward_music_in_theory_and_practice.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/salazunajusitomagojumeje.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_off000061c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C4 4692 bytes
SHA-256: f76f4f0d2199ec338087724470d0d050e0382f6eaccfdca769d2eea205b140e6
font_01_sfnt_off0000719e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719E 10556 bytes
SHA-256: 513da993e8e14f1a3d80cedacd97dd51e89723ab3f3825e587fdf411af5c6654
font_02_sfnt_off0000957a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x957A 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34