Malicious PDF — malware analysis report

Static analysis result for SHA-256 79ded1d0c1c7cdf2…

MALICIOUS

PDF

67.9 KB Created: 2021-02-25 07:49:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e95e6e39bd6e83bee23ed0402aa57d54 SHA-1: cf306b7459348be7c12394634d52ff174cb77996 SHA-256: 79ded1d0c1c7cdf27dde505f743bb3825f539f932f76339c49adeff13962878f
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://jacksth.ru/123?utm_term=ebay+vitamix+3600+parts PDF link annotation
    • http://pofuxubilet.sportsontheweb.net/kuruvikipizanigabipor.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/principles_of_psychology_breedlove.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379482/normal_600ea3b92e679.pdfIn PDF document text
    • http://ravinugamajako.iblogger.org/agricola_revised_rules.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/33217917739.pdfIn PDF document text
    • http://futegejetebe.22web.org/sujebubuledevosigajuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379844/normal_601af22cbe580.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/jbzgfgc/ice_cream_lyrics_bp.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/sifusekujetudemiwelolig.pdfIn PDF document text
    • http://tefitagesev.mypressonline.com/smart_watch_u8_bluetooth.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zilifafaxizi.rf.gd/galulakanume.pdfIn PDF document text
    • http://wuduzukatej.epizy.com/football_game_free_for_computer.pdfIn PDF document text
    • http://fivamoxopel.epizy.com/64368812846.pdfIn PDF document text
    • http://zumaborelap.rf.gd/fodipesix.pdfIn PDF document text
    • http://kinefinukabel.epizy.com/83924347467.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_off0000ccb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB2 5720 bytes
SHA-256: 288fbb168ee48b20facba1b30e18cc3543aa8e3127244abac0519ebd0fae146c
font_01_sfnt_off0000e01d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01D 10148 bytes
SHA-256: 3668225737ddfe7e62a8f19a933420c9156dc79057831f7cdeb300d00bd2a8ee