Malicious PDF — malware analysis report

Static analysis result for SHA-256 05dba1e37191af7e…

MALICIOUS

PDF

68.0 KB Created: 2021-02-13 11:26:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3a4ed71a5503539236fd6dddbc552fae SHA-1: 824e065ad610045e9c44dc2d4051de45ad2ef015 SHA-256: 05dba1e37191af7e10ff00999eb27343f2188837ae0c755833098ab0cf4bf6a4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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://jottigo.ru/wix?keyword=avast+secureline+vpn+refused+license+file PDF link annotation
    • http://reduslim-ordina.site/animal_jam_play_wild_beta33ttu.pdfIn PDF document text
    • http://hackins.site/203064089920tpgi.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/PJjigiS/85775735246.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453914/normal_5fc644857ce6d.pdfIn PDF document text
    • https://cdn.sqhk.co/seseniluvus/jzeZidj/81420232635.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424040/normal_5fcd8904a2257.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467004/normal_5fdabb190aa54.pdfIn PDF document text
    • https://cdn.sqhk.co/napumefu/hj7QHja/2011_range_rover_sport_off_road_review.pdfIn PDF document text
    • http://bloomwithdeanna.com/saderagagivomoxasovawasipo0s36.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/hgfm6hg/tipefaxomipewananajowelej.pdfIn PDF document text
    • http://drive4mclaneeffingham.com/969533346917sf9t.pdfIn PDF document text
    • http://scandisvet.ru/download_bblia_sagrada_powerpoint4kevb.pdfIn PDF document text
    • https://vifejekim.weebly.com/uploads/1/3/5/3/135322606/zumoviz.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/rcihmij/runes_warwick_jungle_s8.pdfIn PDF document text
    • http://poguwukobewale.22web.org/ssc_result_2017_marksheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fegosuzix.epizy.com/telazuz.pdfIn PDF document text
    • http://gidufuvez.epizy.com/pujatonoz.pdfIn PDF document text
    • http://jijetebum.epizy.com/80718350626.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_off0000ce13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE13 5196 bytes
SHA-256: 0a32a534bc427596453f67c3915c3e7cfdba8b34cdf289c556f46982c7a70afc
font_01_sfnt_off0000dfd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD6 10208 bytes
SHA-256: 67a8d216e21166e6d7e4f6e503f7e23a8854cd6e02acdb9dc449dbc7b47ccf17