Malicious PDF — malware analysis report

Static analysis result for SHA-256 5766a2f9298b8038…

MALICIOUS

PDF

75.6 KB Created: 2021-02-28 06:45:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b566888236d26568bcbdd202690dc22b SHA-1: 9d107e38f59235705b216cd07f1f22036b920127 SHA-256: 5766a2f9298b803858896d6799b15f4fcb16e952a93284f480a4f175d0fab445
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or malware distribution lure. It contains numerous embedded URLs, many pointing to disposable domains, suggesting an attempt to redirect users to malicious content. The presence of external URIs and the 'link farm' heuristic indicate a strong likelihood of driving traffic to attacker-controlled sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://botokaw.ru/strik?utm_term=fifty+shades+of+grey+album+songs+download PDF link annotation
    • http://wumewil.sportsontheweb.net/13345928481.pdfIn PDF document text
    • https://rodedewosesuge.weebly.com/uploads/1/3/6/0/136010241/kavenapiwi.pdfIn PDF document text
    • http://fidofawi.medianewsonline.com/how_to_connect_bluetooth_to_pioneer_navigation.pdfIn PDF document text
    • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/5a9ddff7.pdfIn PDF document text
    • https://pexevirojaloko.weebly.com/uploads/1/3/4/8/134882405/10098c24.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/ieigOji/vesova.pdfIn PDF document text
    • http://vumogegotawugub.mypressonline.com/the_koran_definition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449793/normal_60210aee10430.pdfIn PDF document text
    • https://cdn.sqhk.co/fewoxenovof/kjdKTHY/94318369845.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/36156033708.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/audacity_for_mac_m1.pdfIn PDF document text
    • https://nexudusuje.weebly.com/uploads/1/3/0/7/130740550/311068.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/how_to_reset_a_droid_turbo_2.pdfIn PDF document text
    • http://rosajeku.myartsonline.com/which_brand_of_hearing_aid_is_best_uk.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/forakexuzubuvaledula.pdfIn PDF document text
    • http://rususekobijo.myartsonline.com/21891043767.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/16881112182.pdfIn PDF document text
    • http://pevogikuxupeja.onlinewebshop.net/how_to_change_batteries_on_simple_comfort_thermostat.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_off0000e25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25E 5612 bytes
SHA-256: c5c33666b516b9a2e8d8e74f4eb5760225c50d355f34fa9a40de2dcd598454c5
font_01_sfnt_off0000f565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF565 12576 bytes
SHA-256: 279bd52268df2389c67047f15effdc91004f6659b8bc10d13d47cc530bac2438

Open this report in the interactive analyzer, or submit your own file for analysis.