Malicious PDF — malware analysis report

Static analysis result for SHA-256 33bbfe9ecdbcdd75…

MALICIOUS

PDF

66.8 KB Created: 2021-02-19 07:41:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 460b223fbb06e1a7b29232f4fb3105ec SHA-1: 009c246d06498cf91622a8873538c3bb0176be12 SHA-256: 33bbfe9ecdbcdd752fe4434b6fa3c7ce68239b80e388a48c2ab19724b33d9604
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=en+la+radio+hay+un+pollito+lyrics PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464873/normal_5fe9eec39f067.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473642/normal_5feb2254040d2.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/ireland_performing_arts_school.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444657/normal_5fdc226bbe240.pdfIn PDF document text
    • http://fogozuvonuw.66ghz.com/shirt_sewing_tutorial.pdfIn PDF document text
    • https://lakowabanitewot.weebly.com/uploads/1/3/4/8/134898259/sekukomotusuvez.pdfIn PDF document text
    • http://rocketdocs.us/vuximakivotewizilubxv7kd.pdfIn PDF document text
    • https://jerefukixuludew.weebly.com/uploads/1/3/4/6/134686450/2edddd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495684/normal_6017c1028a87c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502698/normal_6007eb49bbfa5.pdfIn PDF document text
    • http://mimowetoxizov.22web.org/jevavuvuribalikuroravol.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
    • http://nokemufebevezo.rf.gd/zorul.pdfIn PDF document text
    • http://luredavum.epizy.com/how_to_install_eheim_fish_feeder.pdfIn PDF document text
    • http://vujofif.epizy.com/21208278731.pdfIn PDF document text
    • http://tevufom.epizy.com/13245470461.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_off0000bf98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF98 4984 bytes
SHA-256: ccf03dba4799c2e4da484ef443430cee61c466a74b1f30e342e035e253ac238d
font_01_sfnt_off0000d077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD077 9536 bytes
SHA-256: ff4801a7ed740b0161c51a67e46f56cbceae9ece9bafc43ae43ebd1eb5cd066c
font_02_sfnt_off0000f048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF048 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333