Malicious PDF — malware analysis report

Static analysis result for SHA-256 40ea149af4e90783…

MALICIOUS

PDF

70.0 KB Created: 2021-03-12 03:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 75624b8ba0d69bbb5dd6379ba8b55cae SHA-1: 907a5ae0c587c9025f8145bcc40f2f46bc9a9dbc SHA-256: 40ea149af4e90783e3a4487b374dfbb384a4f8b0e4cc19a9aa06154d45ef8199
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://fokemale.ru/wix?keyword=renegade+blade+hybrid PDF link annotation
    • https://remoruputudedux.weebly.com/uploads/1/3/4/0/134017090/bizebelakozefawap.pdfIn PDF document text
    • https://raxazejopife.weebly.com/uploads/1/3/5/3/135313527/6080521.pdfIn PDF document text
    • http://erogan-columbia.site/vole_laure_de_sagazan_seconde_mainfkktp.pdfIn PDF document text
    • https://samojosaletope.weebly.com/uploads/1/3/4/0/134017273/5746357.pdfIn PDF document text
    • https://torevuke.weebly.com/uploads/1/3/4/3/134378254/6348090.pdfIn PDF document text
    • http://itabody.space/673974602pk8ys.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/tesla_model_3_standard_range_plus_performance_upgrade.pdfIn PDF document text
    • http://alkim.xyz/fejopugeduganoliyzx16.pdfIn PDF document text
    • https://fofifiso.weebly.com/uploads/1/3/4/6/134613093/perawoxenudemafenixa.pdfIn PDF document text
    • http://airet.space/perforated_sheet_thickness2kyid.pdfIn PDF document text
    • https://gomibabojusul.weebly.com/uploads/1/3/1/4/131483197/momixagipuvapiwipex.pdfIn PDF document text
    • http://mavitrade.com/sosudupizoxuke9v3az.pdfIn PDF document text
    • http://fotubobuwenapu.scienceontheweb.net/speakeasy_tattoo_los_angeles_location.pdfIn PDF document text
    • https://zisafidavilux.weebly.com/uploads/1/3/2/8/132814196/nezol.pdfIn PDF document text
    • https://vutuwoti.weebly.com/uploads/1/3/4/7/134720014/kobavi-dujibowo-luritineramuj.pdfIn PDF document text
    • http://sigefolaxapuve.22web.org/amelie_piano_easy.pdfIn PDF document text
    • https://lulofaki.weebly.com/uploads/1/3/1/4/131453598/354307.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luselobek.epizy.com/bhagavad_gita_chapter_1_english.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/husky_60_gallon_air_compressor_wiring.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/25256955437.pdfIn PDF document text
    • http://jalavexep.epizy.com/dell_inspiron_20_model_3043_cpu_upgrade.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_off0000d28d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD28D 5160 bytes
SHA-256: e83726528bb5009e81b66f1518a3f0fc780d07bc3172af743b90e67fccf86b21
font_01_sfnt_off0000e41a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41A 11496 bytes
SHA-256: 999a431ab2c765ed49d900f613dc1e9f7f8e964a219c869b8f298c38bcd79e22