Malicious PDF — malware analysis report

Static analysis result for SHA-256 068372ba9a017808…

MALICIOUS

PDF

87.9 KB Created: 2021-05-05 06:31:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 326c4754787d34102282950765d8cee2 SHA-1: 51d125dd99d07b6f0ad35549b39da26a650d0061 SHA-256: 068372ba9a017808073f519207e9fdd6c536e7ea7582e711e7afeb392267bfab
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://pelibifir.ru/strik?utm_term=the+ransom+of+red+chief+summary+in+english PDF link annotation
    • https://cdn.sqhk.co/naziwixolagu/hjilDiy/pemumadefiw.pdfIn PDF document text
    • http://discovljzg.fun/borufixu8utaw.pdfIn PDF document text
    • http://iqecoportal.ru/77526393650wuite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501775/normal_600c244dd1b94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421330/normal_5fd2f0a5b446c.pdfIn PDF document text
    • http://copyrightshelpcenter.com/cyberpunk_2077_hdr_pc_not_workingz9sjq.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/finojovavafi.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/aZ303if/36815720443.pdfIn PDF document text
    • http://zomoxoxuriw.mypressonline.com/canon_650d_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/rowofabuf/cMmPVif/the_factory_gulf_shores_birthday_party.pdfIn PDF document text
    • http://serururepus.scienceontheweb.net/gudukop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459028/normal_6026cb51e3292.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491159/normal_6031f014852c0.pdfIn PDF document text
    • http://lukunezevowazol.sportsontheweb.net/ronovazafekiwesatokefaka.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/9sDzzYn/should_cat_s_ears_be_warm_or_cold.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6ada6c45-9e8d-4063-9633-40b9e375d9b0.filesusr.com/ugd/9a7afa_2e24b2abdbd14c7b85ee32e236f284ff.pdf?index=trueIn PDF document text
    • http://zubiluwetij.myartsonline.com/36901747557.pdfIn PDF document text
    • http://gizenelik.rf.gd/glyphicons_bootstrap_3.pdfIn PDF document text
    • https://e19809cf-df80-48c1-9975-8599b001ad7a.filesusr.com/ugd/062cdf_446cde3e08cc44788bf89099a54e1682.pdf?index=trueIn PDF document text
    • http://xudowavujajewof.epizy.com/rosugapaxiwopukubomiloja.pdfIn PDF document text
    • http://jusexezoti.epizy.com/gibodemak.pdfIn PDF document text
    • https://9c33b4df-6f14-41ad-9e94-a3a23f7ed20d.filesusr.com/ugd/2a975f_cf6cb9e5b289444c833c9b01a9b6dc2d.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_off00011c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C89 5484 bytes
SHA-256: d50a312c7b8e57cc003d16d99c63b510a0e024cbff313721b76841beb39be790
font_01_sfnt_off00012f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F0C 10088 bytes
SHA-256: 30d4c1543b7e187c2968aa8a25270da4692d4c333e9cc8f2e257a090e7603c05

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