Malicious PDF — malware analysis report

Static analysis result for SHA-256 053fc073bbf50563…

MALICIOUS

PDF

76.2 KB Created: 2021-03-30 15:16:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 123a6d2b03871938486fac35ad7739c2 SHA-1: a6a5f07de7780d5118f676dff539ac6edc424939 SHA-256: 053fc073bbf5056381f9be1c4b94a9bce1c98fa0623bf9d4d0020cbc54b66f5f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/award?keyword=organigramme+des+brasseries+du+cameroun+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444096/normal_5fd66eb5e0f2c.pdfIn PDF document text
    • http://natiral.space/jewixegekepumome3qg4t.pdfIn PDF document text
    • https://cdn.sqhk.co/tivanosox/haig2ia/beribiluxaki.pdfIn PDF document text
    • http://skywonder.space/guwonapowikewawupurep6xdr0.pdfIn PDF document text
    • http://vnds-super.space/ruvibavisujufugixdjena.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/gdjhRB6/dual_citizenship_meaning_tagalog.pdfIn PDF document text
    • https://cdn.sqhk.co/nonatedogo/hjij4hd/bibodenadewuninakenusanax.pdfIn PDF document text
    • http://neo-tp.ru/44751527660hy16x.pdfIn PDF document text
    • https://cdn.sqhk.co/loxusovi/gjjiO3B/85470186177.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379855/normal_6005a08880c5b.pdfIn PDF document text
    • http://submonster.xyz/50_pips_a_day_forex_trading_strategyh96yv.pdfIn PDF document text
    • https://cdn.sqhk.co/pujazojiwixi/Igcxtq2/fusalulib.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/fofeguj/jdk_8_zip_file.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/algebra_1_solving_literal_equations_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/lomokasenefoxizibejeke.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/52840611126.pdfIn PDF document text
    • http://fikikozazilut.rf.gd/so_sad_today_personal_essays.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/lebozibena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505481c7-8595-4366-a21b-b72cbf51f300/what_is_the_best_texas_instruments_calculator.pdfIn PDF document text
    • http://detapir.rf.gd/51870319319.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afc57fc8-6af6-49c8-910e-fde393870082/vevibokiwexizakufafug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6713cbd2-e9ae-4992-b387-bf5a4fd1b32d/mofimakusubaja.pdfIn PDF document text
    • http://tixerewolulas.rf.gd/46306681687.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_off0000e60c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60C 5612 bytes
SHA-256: 5a887d95ff4b385693c4be5c0c403a435d83a2b7b623f2f74aa313733071a310
font_01_sfnt_off0000f900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF900 12456 bytes
SHA-256: 69efb2b53ecf442b151f3ce28a85984c36c2bd702934529cab74a103df1d2eff

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