Malicious PDF — malware analysis report

Static analysis result for SHA-256 10c8673e4e5d3760…

MALICIOUS

PDF

71.4 KB Created: 2021-02-13 11:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 418122da1170a49fc2906c248f21a6c7 SHA-1: 69fcc543e63137f2121083ad46a8bb32e0530819 SHA-256: 10c8673e4e5d3760b3f1118ff8635ccaf485c0f9ad23910b172826488730c8b8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=wayne+hills+high+school+football+schedule PDF link annotation
    • http://creditpm.com/17596027044zw5jh.pdfIn PDF document text
    • http://avit0.pro/kabuxavizifewaxitbu5lu.pdfIn PDF document text
    • http://leafester.online/759106345291dpzr.pdfIn PDF document text
    • http://arm-watch1.club/moxidonovobugosilovujavepdokye.pdfIn PDF document text
    • http://sanatoriy-izumrudny.ru/lowexinofuknze.pdfIn PDF document text
    • http://frut-tree.site/150435707002ur44.pdfIn PDF document text
    • http://yogait.space/basic_statistical_analysis_sprinthall1221k.pdfIn PDF document text
    • http://tublitalia.space/no_man_s_sky_xbox_one_wikiikwo1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375095/normal_6022fc5aa562b.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/duck_shooter_gameyeqvo.pdfIn PDF document text
    • http://idealicaitaly.site/gibokixotarazi79twf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495395/normal_601275bb6dcdf.pdfIn PDF document text
    • https://faxojoduso.weebly.com/uploads/1/3/5/3/135351685/9958371.pdfIn PDF document text
    • http://apple-fruit.space/the_power_by_rhonda_byrne_in_hindimw196.pdfIn PDF document text
    • http://beststudent.fun/napitupifesi0b2s0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443619/normal_6020269d84012.pdfIn PDF document text
    • http://domainlimax.xyz/10922194842yw0se.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/6304173151.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/business_informatics_jobs_in_egypt.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/glow_worm_ultracom_30cxi_user_guide.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_off0000d9e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E0 5444 bytes
SHA-256: 19c0a69e273239da1b4d53ce6bca127197026a1e52e48459b10c02439b789c5b
font_01_sfnt_off0000ec7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7D 10436 bytes
SHA-256: a9f37ca07c8df11c6656a3152826c5bebcaa354411284493cac015fa9025e807