Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e86240ac83cd91…

MALICIOUS

PDF

64.6 KB Created: 2021-02-12 03:45:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 32dba165f0743d80c8028ec292c17e60 SHA-1: f1142cd507ef69a7dc4a505535910466b386e1e9 SHA-256: 60e86240ac83cd910bc9cd13b48e466c712a831cba402de7de4133fe782beff1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 http://wiregabjuk.fun/88570496890rkkbf.pdf In PDF document text
    • http://idealslim-italiaoficial.site/apple_apps_emulator_for_android9yirp.pdfIn PDF document text
    • https://cdn.sqhk.co/lupokuna/gjiiUif/xofir.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/dKHij8F/mediaf_re_minecraft_xray.pdfIn PDF document text
    • http://povar2020.site/air_conditioning_principles_and_systems_4th_edition_free_download9eazq.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/g_code_grbl_arduino7i9yk.pdfIn PDF document text
    • http://opt15.ru/who_guidelines_for_drinking-_water_quality_tdsa30rn.pdfIn PDF document text
    • https://cdn.sqhk.co/lawafopugu/xv0gfyr/refimunekof.pdfIn PDF document text
    • http://missunik.space/cambridge_igcse_mathematics_core_and_extended_revised_editioncz404.pdfIn PDF document text
    • http://revershjtb.site/federalist_paper_78_questions_and_answerskex7q.pdfIn PDF document text
    • https://cdn.sqhk.co/sazelusup/wMGgeji/tusax.pdfIn PDF document text
    • https://yafferge.ru/wb?keyword=biennial%20update%20reportPDF link annotation
    • https://yafferge.ru/wb?keyword=biennial%20update%20report(%20burIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kakapefetabol.rf.gd/vip_betting_tips_app.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/tunutakimowerabeviwava.pdfIn PDF document text
    • http://tubupokus.rf.gd/csulb_campus_map.pdfIn PDF document text
    • http://gevorewububew.epizy.com/2091702830.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_off0000c1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1A1 5120 bytes
SHA-256: bd513f43228c10deec47f0dbb46f1452c3b280db3894c959e45fe168bc34d6f8
font_01_sfnt_off0000d31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD31C 10084 bytes
SHA-256: 0c5995bb7f84002c37c39343bcaa5c1128599d4fb60214da00cc40f75a0664d3