Malicious PDF — malware analysis report

Static analysis result for SHA-256 4623071c68c4ec40…

MALICIOUS

PDF

70.8 KB Created: 2021-02-24 10:47:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ba03daa26af3cfc7a0d0b52d789e68d1 SHA-1: 9f7f8a58f523ea5e8f6ebde22fb5cf9c429c5362 SHA-256: 4623071c68c4ec4089e7e9ebd5200958aed8d60926e2f62ae608cbc4bb684670
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=how+to+summon+the+grim+reaper+in+minecraft PDF link annotation
    • https://zedimubaxujejit.weebly.com/uploads/1/3/4/7/134715534/284617.pdfIn PDF document text
    • http://viduzunopiwofik.22web.org/26530609473.pdfIn PDF document text
    • http://pumujavebedopa.iblogger.org/mazemakapitomizakod.pdfIn PDF document text
    • http://gewebud.22web.org/greta_imdb_parents_guide.pdfIn PDF document text
    • https://fikadodovawewa.weebly.com/uploads/1/3/4/3/134320255/vugidulifovis_kibone_wuxovovu.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/6iggear/84412063080.pdfIn PDF document text
    • https://gixovazaviv.weebly.com/uploads/1/3/5/9/135982549/1cd292393.pdfIn PDF document text
    • https://rilavowa.weebly.com/uploads/1/3/2/7/132740415/5128fe.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/jj99ghl/raxoloserilad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fopaguduvogo.rf.gd/20216990143.pdfIn PDF document text
    • http://roruvavaderej.epizy.com/solaredge_inverter_data_sheet.pdfIn PDF document text
    • http://tesoduv.rf.gd/xawikamixinerika.pdfIn PDF document text
    • http://zividovapajawuv.epizy.com/calvin_klein_coat_size_guide.pdfIn PDF document text
    • http://fotafufoka.epizy.com/iso_45001_audit_report.pdfIn PDF document text
    • http://nabumib.rf.gd/aol_authentication_failed_android.pdfIn PDF document text
    • http://tosefiwaniw.rf.gd/crash_bandicoot_mind_over_mutant_wii_guide.pdfIn PDF document text
    • http://kugofabafomozo.epizy.com/absceso_hepatico_amebiano_tratamiento.pdfIn PDF document text
    • http://koxosam.rf.gd/anarchy_online_keeper_guide_2017.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_off0000d7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7AE 5452 bytes
SHA-256: 1270f7a1db1208cf460cfed2bde51d0bb8912856e8ad2c44b19ff3a6326a2be5
font_01_sfnt_off0000ea23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA23 10480 bytes
SHA-256: 4c32ab9c51e5c44f4d26b9180a456843a89ff2a970a383532406b1a753b3bff1