Malicious PDF — malware analysis report

Static analysis result for SHA-256 366913a5b780114d…

MALICIOUS

PDF

49.2 KB Created: 2020-10-15 23:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 416d5e96fcbab9327bb68ed68b965334 SHA-1: d9ff6f212179251580d296f6c14090bf17699558 SHA-256: 366913a5b780114d262f1ef99b53890b0daf1afb14231b3fe978a565d3c6b5d6
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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://gettraff.ru/123?keyword=viper4android+apk+old+version In PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/tebavu_mofevuz_punoxibera_gijipomole.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/7398713.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/edbd2edb1a75.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/xekena.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/wumap.pdfIn PDF document text
    • https://gikoberi.weebly.com/uploads/1/3/0/9/130969260/58fa9cd.pdfIn PDF document text
    • https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/1156356.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/likanutavorolebonat.pdfIn PDF document text
    • https://digafixi.weebly.com/uploads/1/3/0/7/130776371/974d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370288/normal_5f8857a39ee55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f873fc97712a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f871f7048523.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/vivabewutuj.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/zarowomodipamigeron.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/bidopinijixuni_zupap_zosedasaxenim.pdfIn PDF document text
    • https://tajurasexir.weebly.com/uploads/1/3/1/6/131606020/e4cd1.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/goguxovimonesu-xumibesinesufo-tirobefexar.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7800/4135/files/bamexetubukemapimosavagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3336/1045/files/workforce_reshaping_operations_handbook_opm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8950/9017/files/chick_embryology.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD6 5128 bytes
SHA-256: f771b4250c3b8853b8c755e0548a58906fa8f79c345f8a8b85528721d1acdb3e
font_01_sfnt_off00007f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F61 10204 bytes
SHA-256: a294460a1eeb57386af1f308de7ec4a23a536afc31dea3df2fa30ce80e998abe
font_02_sfnt_off0000a28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA28A 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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