Malicious PDF — malware analysis report

Static analysis result for SHA-256 014304b85d52f0db…

MALICIOUS

PDF

72.2 KB Created: 2021-03-04 00:19:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7ae71278995525c70326152cdbeb303e SHA-1: fd65d7c160a9d1c1236d146394c45258aa1cee31 SHA-256: 014304b85d52f0dbd44cd1a13361d105dbe33e250e507a684e24a3b592372666
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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/award?keyword=how+to+mod+mw3+xbox+one PDF link annotation
    • http://merulabodonulu.iblogger.org/14110709655.pdfIn PDF document text
    • https://zavuvomexuwu.weebly.com/uploads/1/3/2/7/132740545/kerilunosirutivew.pdfIn PDF document text
    • https://nopufara.weebly.com/uploads/1/3/3/9/133999240/vatuxuv.pdfIn PDF document text
    • https://godosofebi.weebly.com/uploads/1/3/4/6/134651625/1171445.pdfIn PDF document text
    • https://dusonomikeka.weebly.com/uploads/1/3/2/6/132695238/8fe14f4.pdfIn PDF document text
    • https://favotofuti.weebly.com/uploads/1/3/1/8/131871633/6075076.pdfIn PDF document text
    • https://nuguzawopaji.weebly.com/uploads/1/3/4/0/134040365/8482161.pdfIn PDF document text
    • http://setifol.66ghz.com/pilajigepajemep.pdfIn PDF document text
    • http://wifokilite.iblogger.org/appraisal_letter_sample_format.pdfIn PDF document text
    • https://pimujupaz.weebly.com/uploads/1/3/4/4/134440235/1335197137c967.pdfIn PDF document text
    • https://verevivomilob.weebly.com/uploads/1/3/0/7/130738769/51de0e53.pdfIn PDF document text
    • https://mejotozoferu.weebly.com/uploads/1/3/4/8/134866749/fesajasonev.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jekojefakowosep.rf.gd/lelej.pdfIn PDF document text
    • http://dataluwemijelo.epizy.com/does_taco_bell_still_have_the_toasted_cheddar_chalupa_box.pdfIn PDF document text
    • http://tifofev.rf.gd/p90x_day_1_workout_sheet.pdfIn PDF document text
    • http://pewetijugezam.rf.gd/volesepamuzabinobexazamex.pdfIn PDF document text
    • http://zotogujerovod.rf.gd/sbi_debit_card_online_apply_form.pdfIn PDF document text
    • http://podaviloridi.rf.gd/felusuxatub.pdfIn PDF document text
    • http://birifamabaxum.rf.gd/san_diego_chargers_injury_report.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD180 4620 bytes
SHA-256: 31e46c59e043a8b08f06e1053371ddc36974a8fcba563742f9718d1f3f0e6b70
font_01_sfnt_off0000e130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE130 11540 bytes
SHA-256: f9498e834532361bae5730e8abc7bfdd1202c1325f02df6e495abf7b4c1b4c40
font_02_sfnt_off000105cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f