Malicious PDF — malware analysis report

Static analysis result for SHA-256 0642cd46e1ec96c9…

MALICIOUS

PDF

75.5 KB Created: 2021-03-13 17:43:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 3e143fff314fe90bd6e1384736b48966 SHA-1: 29566c46f9d7d9fda94bdf3c25bb7cb912f68120 SHA-256: 0642cd46e1ec96c92b140365d389ba999b7d4e4cc25df6b4202b28340d1cfcb7
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one identified as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the link farm heuristic point towards a malicious document likely intended to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://nipisod.ru/aws?utm_term=breville+smart+oven+air+fryer+accessories+nz PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387825/normal_5feb028de0c15.pdfIn PDF document text
    • http://gbo.guru/559142457075vzxe.pdfIn PDF document text
    • http://geesecam.com/beyond_the_walls_full_movie9271z.pdfIn PDF document text
    • http://gagefiwirimat.medianewsonline.com/muwolojelemofuputubo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455381/normal_5ffbc50b48ef6.pdfIn PDF document text
    • http://zugugalepew.mypressonline.com/o_que__relatorio.pdfIn PDF document text
    • http://bulepozobagepud.mygamesonline.org/marketing_project_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383446/normal_603b71cd2057c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443326/normal_5fc9d5e734ebf.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/15701628945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409628/normal_603b4f983a67a.pdfIn PDF document text
    • http://geosen.net/kujamugavenuredued9yn.pdfIn PDF document text
    • http://com-copyrighit.com/torn_acl_and_meniscus_surgery_recovery3l0ig.pdfIn PDF document text
    • http://senteber.site/vatagewetodotelakajiveri7wp38.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/39d503c1-4fcb-4087-864b-6e7ff2f829f7/32563921251.pdfIn PDF document text
    • https://63d876aa-455f-4c41-9c38-50747f3e0b95.filesusr.com/ugd/a220d5_6e0d28b6ea5d4a99ae629241ddcafe90.pdf?index=trueIn PDF document text
    • https://56a7be67-7dca-40da-a973-69ad719fb73b.filesusr.com/ugd/fedf23_bdcbe1d57063419490bd4eea9de3da66.pdf?index=trueIn PDF document text
    • https://cf075d60-af7c-4c71-a16c-5c8c125a9bb7.filesusr.com/ugd/cc03df_a07562359ef14f7388a2ee25994591b0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef4524dd-eca2-4614-8c1f-1bbb35c78e08/juki_ddl_555-4_parts_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39ee5081-3b70-48ef-acd4-fc0a3a44b459/gezixuzanuwul.pdfIn PDF document text
    • http://wazeniwemir.onlinewebshop.net/2303333982.pdfIn PDF document text
    • https://cceb078e-1df6-42b0-9e12-359f30e42f1d.filesusr.com/ugd/e8506d_d0eeb6f99b2f4c6d9be17a3c9ef8ac87.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/58b7663e-c16d-436f-a075-42dc17b82f45/does_bontrager_duotrap_work_with_iphone.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_off0000e909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE909 5288 bytes
SHA-256: 256578cf9c5f4d9cf5646648b6bde4801444a2f7f3679fef9dde73719dc8263f
font_01_sfnt_off0000fb05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB05 10984 bytes
SHA-256: 862d93a73ba9b71973939d3e9fec39fec21e1a99b8b7e0f066482591e11454a3

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