Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e57ca26dca76344…

MALICIOUS

PDF

69.6 KB Created: 2021-03-22 16:56:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 35e1f819298aa8bc6835680d55385db8 SHA-1: 9a7205ea42666708f937d840ac446a0485d55790 SHA-256: 1e57ca26dca763446807d4163291b4cb9d84e5a2b2c86d6dfa57d5a31343ffc1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/wix?keyword=performing+under+pressure+pdf+download PDF link annotation
    • https://wuzinetasinozud.weebly.com/uploads/1/3/1/6/131606123/7ef35.pdfIn PDF document text
    • https://xedububedopo.weebly.com/uploads/1/3/0/7/130740082/winid.pdfIn PDF document text
    • https://tuvopezape.weebly.com/uploads/1/3/4/7/134712323/mowodivekudifemuvu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425916/normal_604e210ad991d.pdfIn PDF document text
    • http://meetporte.xyz/the_crown_season_3_episode_10_islandhmtbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485579/normal_603fa406f2c63.pdfIn PDF document text
    • http://trickyturkey.com/41896080698eww2r.pdfIn PDF document text
    • https://raxagipob.weebly.com/uploads/1/3/4/8/134883443/jitesotane.pdfIn PDF document text
    • https://gukamixi.weebly.com/uploads/1/3/4/0/134042495/7579115.pdfIn PDF document text
    • http://nuzidixiwetor.22web.org/33174560524.pdfIn PDF document text
    • http://temilops.xyz/zipazeronajozigangyn5q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418557/normal_60491f244b99e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377100/normal_5fffe8929beb3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nodikisiti.rf.gd/complete_the_square_standard_to_vertex_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f02823f-a033-4e8a-ab72-9f299c62517b/roland_spd_30_price_in_sri_lanka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1eed5e81-c297-4108-a90b-5da255ff6e23/pentair_superflo_1.5_hp_capacitor.pdfIn PDF document text
    • http://taxisariwoboduz.epizy.com/gitejewoxuxijav.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_off0000d23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23E 5456 bytes
SHA-256: 37dc1b8d5abd9738e20c624fa9c276f4e7dba6f195403187119ba572cbdf89fe
font_01_sfnt_off0000e4c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C9 10236 bytes
SHA-256: 420296a7dd3e4b767bc8b2fc44cda8e16092563e32fb16219b443807daaddc1a