Malicious PDF — malware analysis report

Static analysis result for SHA-256 d38b6155295f9c3f…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 22:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 44a63b95ca728be9f7341eef74109e98 SHA-1: 2c1bdf27ed57ff97759c1f76abb93d1f56e79c25 SHA-256: d38b6155295f9c3fa3ea083fab5c03cbae67d1828e4dad5874e35ddc5d022b1b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://botokaw.ru/award?keyword=walmart+pharmacy+telephone+number+near+me PDF link annotation
    • http://blancer.xyz/38699818168bqfcx.pdfIn PDF document text
    • http://paypallsecurity.com/real_boxing_2_apk_requirementsiq4cf.pdfIn PDF document text
    • https://xilapisozigiv.weebly.com/uploads/1/3/4/3/134341565/3661557.pdfIn PDF document text
    • https://cdn.sqhk.co/rufebumu/ceCmjhw/46615054481.pdfIn PDF document text
    • http://tubunasozejut.22web.org/cs_go_android_online.pdfIn PDF document text
    • https://cdn.sqhk.co/zowolanazew/himwNih/65715593683.pdfIn PDF document text
    • http://soul-felt.com/snustad_and_simmons_principles_of_genetics_7th_edition_free_downloadx9mjz.pdfIn PDF document text
    • http://setakini.22web.org/74684817650.pdfIn PDF document text
    • https://cdn.sqhk.co/dewobube/ihzhihd/tripp_trapp_baby_set_install.pdfIn PDF document text
    • http://sujabupinoda.scienceontheweb.net/ejemplos_de_dialogos.pdfIn PDF document text
    • http://wovolutoxali.iblogger.org/extremities_guide_gloves.pdfIn PDF document text
    • https://cdn.sqhk.co/gotuxixovumu/x9jj6mT/69613207892.pdfIn PDF document text
    • http://wegolurubakisud.22web.org/audible_manager_for_windows_8.pdfIn PDF document text
    • http://simultaneously.space/how_to_connect_turtle_beach_to_ps4_slimx8hej.pdfIn PDF document text
    • http://9gusevshop.space/analysis_of_hydrogen_peroxide_lab_ap_chemistry_answersvyw3o.pdfIn PDF document text
    • http://rollernefrit.xyz/emma_jane_austen_ebookbnsvk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BB 5248 bytes
SHA-256: 6f0aab816ab9fbc1ad535d5ba6c838997cf63bcd551ecc59f024c62ff60510cd
font_01_sfnt_off0000f47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47D 10324 bytes
SHA-256: 763baa1285e8d795a47d4d98f0aab52112d02357dc6049bd5c5db73b9b877f2a