Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e492b32859290d…

MALICIOUS

PDF

63.1 KB Created: 2021-02-14 00:09:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: dacdd7832b1d4ed10f76f64d8af35ab3 SHA-1: 4ef3510cc66b51a9a59404727a218a59ba55be1c SHA-256: b7e492b32859290d37619ae8ac05173c31d2347348fce1682dbb39a2ff766adc
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was flagged by multiple heuristics as a credential phishing attempt impersonating Apple. It contains numerous embedded URLs, many of which point to disposable domains or link farms, suggesting a malicious intent to redirect users. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://taxurazuzar.weebly.com/uploads/1/3/4/0/134042721/nekolebe.pdf.
  • 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://baarspo.ru/wix?keyword=lord+of+the+flies+questions+and+answers+chapter+3 PDF link annotation
    • http://wide-take.top/ark_survival_evolved_ps4_guide_wikicpval.pdfIn PDF document text
    • http://4gusevshop.space/pufutuxubewuwixovefuziti5r0tg.pdfIn PDF document text
    • http://milky-rp.space/varivilokofikikepi0ame.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495413/normal_5fd325af809ec.pdfIn PDF document text
    • http://legionmone.xyz/biopsia_de_tiroidesjpj69.pdfIn PDF document text
    • http://nelibagaxo.iblogger.org/sedunupegazakeza.pdfIn PDF document text
    • http://filanion.online/the_short_prose_reader_13th_editionjxlqr.pdfIn PDF document text
    • https://taxurazuzar.weebly.com/uploads/1/3/4/0/134042721/nekolebe.pdfIn PDF document text
    • https://wimupajano.weebly.com/uploads/1/3/4/6/134682998/kepura.pdfIn PDF document text
    • http://it50disconto.info/71645094899l0u9m.pdfIn PDF document text
    • https://wukelefitifaka.weebly.com/uploads/1/3/4/8/134882985/sijudetelito_sugexarufujumu_saguxud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366666/normal_5fec42006f70a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451348/normal_601dd8d6f1e7d.pdfIn PDF document text
    • http://salonly.xyz/nivedifiwifojat70pfd.pdfIn PDF document text
    • https://kezodedekupamo.weebly.com/uploads/1/3/4/6/134605888/18074930d7.pdfIn PDF document text
    • http://custits.space/22734715686hnlyn.pdfIn PDF document text
    • http://1offpark.xyz/libro_de_formacion_civica_y_etica_3_de_secundariay193v.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wakerot.epizy.com/production_possibilities_curve_worksheet.pdfIn PDF document text
    • http://pimudovi.epizy.com/nemoweruvujibosale.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB93 5568 bytes
SHA-256: dbeadb20d6d960c845033c59503f5cdb63deb743fa0673978fef88860b49a3d6
font_01_sfnt_off0000ce92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE92 9496 bytes
SHA-256: b0811745667d9d1ad2d6e922e3fba4b0f1546a853e817b17df3543350ed36faf

Open this report in the interactive analyzer, or submit your own file for analysis.