Malicious PDF — malware analysis report

Static analysis result for SHA-256 748abe2ac2cb263e…

MALICIOUS

PDF

68.6 KB Created: 2021-03-05 21:32:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4b846087cdb579bff45303ba5ffb753f SHA-1: df5fd904af2e6fc0fe0838e62036157c4ded2f26 SHA-256: 748abe2ac2cb263e4bf71296c0c05f9b5f23aed1c5612718403a30afdc35de43
186 Risk Score

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
  • 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://soxebez.ru/wix?keyword=bond+order+of+no PDF link annotation
    • https://dexazime.weebly.com/uploads/1/3/1/4/131437554/dc5e9.pdfIn PDF document text
    • https://kupifima.weebly.com/uploads/1/3/0/7/130775493/2880526.pdfIn PDF document text
    • http://registrat.space/2647081177d9l29.pdfIn PDF document text
    • http://usacreditscore.info/kefoxotowanigosikerubmvtuu.pdfIn PDF document text
    • https://powekusazalij.weebly.com/uploads/1/3/2/6/132695596/jelud_rexudawi_fubarekamovin_vojifulovibi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470542/normal_5fdb90d65455c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384819/normal_5fddbff9ea43c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366354/normal_601b354b3c5e1.pdfIn PDF document text
    • http://ses-paypal.com/srimad_bhagavatam_telugu_free_download3qi4l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417207/normal_5fe1047cf1085.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476142/normal_5fed659ee0267.pdfIn PDF document text
    • http://hangookoil.ru/bahaddur_kannada_full_film_freemky2p.pdfIn PDF document text
    • http://bio-ita.fun/snake_river_farms_locationhm8kn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_d6a4c889dc5344b392e5f3de280d2e8d.pdf?index=trueIn PDF document text
    • https://cf268418-7549-4780-9cff-e39e61b5276c.filesusr.com/ugd/0b1cf2_6f9919cb00d0477fa42bb939fa3ab885.pdf?index=trueIn PDF document text
    • https://006b50d4-ad2a-4261-8279-34542eb0d7b0.filesusr.com/ugd/a640e9_78c98aebdb624921a4add55ec39250e3.pdf?index=trueIn PDF document text
    • https://c788b29d-df2d-4d46-9946-349e8cce89b7.filesusr.com/ugd/a9e086_f17c45438eab4e2bb61f5c006364379c.pdf?index=trueIn PDF document text
    • https://52f9d6e5-2fd5-4906-a030-4d12f703b62a.filesusr.com/ugd/297ecd_aef33297b49c4791bbb1db9212bfcc20.pdf?index=trueIn PDF document text
    • https://da5bec28-7969-4117-8ffb-5069fce5e80c.filesusr.com/ugd/31593d_d2200d43b4c04f57ab759ca89fef7939.pdf?index=trueIn PDF document text
    • https://f1cb2ec4-a82d-4768-8a06-5236a2db220e.filesusr.com/ugd/a2e20a_d18350bf1b954ad2a4111d7fc9a5dd12.pdf?index=trueIn 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_off0000d2dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DC 4528 bytes
SHA-256: dbe6b329eccbb89dcaba1cb968b65770f4b5f4541943669d613d6cd3baa14ef1
font_01_sfnt_off0000e254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE254 10208 bytes
SHA-256: 6d32737d5786e3c7a62ad452c654e18a8168d2e3f0e0f82711cc1ad24ef59b47