Malicious PDF — malware analysis report

Static analysis result for SHA-256 4968a0da03e317e6…

MALICIOUS

PDF

73.3 KB Created: 2021-03-29 17:08:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: dff3a5a604ace3eb8bf37e6312bc3d3a SHA-1: 9087877fc59d320f797111ccb9c7ece9dde0567a SHA-256: 4968a0da03e317e6bb8705e1ebd94263907bc05892a579223229ca69df86f933
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to potentially malicious domains, as indicated by the PDF_SEO_LINK_FARM heuristic and the ClamAV detection. The embedded URL 'https://mezovuduw.ru/strik?utm_term=is+misery+a+good+movie' is a primary indicator of a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to malicious content.

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 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.
  • 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://mezovuduw.ru/strik?utm_term=is+misery+a+good+movie PDF link annotation
    • https://togutugu.weebly.com/uploads/1/3/4/6/134617883/tolipidewow.pdfIn PDF document text
    • http://luxomozuk.mypressonline.com/24553462143.pdfIn PDF document text
    • https://cdn.sqhk.co/lizubenesowi/gjqjiij/international_superstar_soccer_wiki.pdfIn PDF document text
    • http://bewudewumit.sportsontheweb.net/83008350143.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/pgdTge8/lemonade_stand_sign.pdfIn PDF document text
    • https://fizinizaboz.weebly.com/uploads/1/3/5/3/135304720/6267109.pdfIn PDF document text
    • https://desaboros.weebly.com/uploads/1/3/5/4/135400021/xuzudikoxerurogufeg.pdfIn PDF document text
    • https://bokasaveti.weebly.com/uploads/1/3/4/7/134725866/meledumokunexibu.pdfIn PDF document text
    • https://mixifomako.weebly.com/uploads/1/3/1/1/131164472/7f5b14f501926.pdfIn PDF document text
    • https://jifosibupegexuv.weebly.com/uploads/1/3/4/6/134692258/9312634.pdfIn PDF document text
    • https://vamabeloketofip.weebly.com/uploads/1/3/4/3/134344852/4d1b7a8126.pdfIn PDF document text
    • https://tilifopufobi.weebly.com/uploads/1/3/6/0/136049844/setefur-tafunazu-xuwumixazaw-gixawe.pdfIn PDF document text
    • https://cdn.sqhk.co/fukofuwuvis/eihhbgi/facebook_ads_template_2018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/vipukedosobugigozavinowuz.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/the_unofficial_harry_potter_cookbook_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac57e245-4e03-4aef-b257-d2f528d2d104/english_conversation_class_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/ccnp_voice_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82d42e22-0945-4600-bc44-9a22b0c21696/coast_guard_regulations_for_boats_under_16_feet.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/luvimapiposevef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c97aea3f-6c48-41b7-ae47-92c8c67e0824/computer_information_systems_manager_degree.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72e79163-3caf-438d-ac33-7cd999af5055/44323558712.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/business_card_template_microsoft_word_2007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8a15700-f249-4e91-819e-622070a5560e/bush_dishwasher_e4_error.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_off0000e33b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33B 5212 bytes
SHA-256: 8363a78784a44dd810b7a891d73acecb8fd51b723ba74035db33a5abb1e76687
font_01_sfnt_off0000f4ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EA 10272 bytes
SHA-256: 2c3d064a055368fdf187c35c8ecba0645ea7de247b7f0cc9043ec7777f49dc69

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