Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd015ace14d1bb9…

MALICIOUS

PDF

76.7 KB Created: 2021-04-06 20:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 30e48996ea008771a0e6c6a552d74c8b SHA-1: b22b3df5fb478db3ef3f3fe18fe5d042313f48cc SHA-256: 9bd015ace14d1bb93514425b4b26d9d7e313b980b5f6ac7506eb27ff1438bc96
126 Risk Score

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 0.9996

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://dugedepap.ru/strik?utm_term=baby+bjorn+potty+chair+reviews PDF link annotation
    • https://cdn.sqhk.co/fagijopi/gjh0jgL/14428689281.pdfIn PDF document text
    • http://sekelenogake.getenjoyment.net/solidworks_flow_simulation.pdfIn PDF document text
    • https://litizabege.weebly.com/uploads/1/3/4/7/134713043/xepizeginaxomarugu.pdfIn PDF document text
    • http://getcreditreport.info/new_craftsman_chainsaw_leaking_bar_oilpau7u.pdfIn PDF document text
    • https://bativizamazon.weebly.com/uploads/1/3/4/7/134770744/luxixirever.pdfIn PDF document text
    • http://juzezudusota.mypressonline.com/emotional_guidance_scale_spiral.pdfIn PDF document text
    • http://pewekelexu.mygamesonline.org/aviation_english_book.pdfIn PDF document text
    • http://hargotel.xyz/fupufutunujavohah7.pdfIn PDF document text
    • http://copyright-help-center.com/befifilorosaguxinic7tgk.pdfIn PDF document text
    • http://bonboxstudio.com/why_is_verbal_communication_important_in_businessndulx.pdfIn PDF document text
    • http://femetorisufi.sportsontheweb.net/how_to_get_brown_by_mixing_colours.pdfIn PDF document text
    • https://vozupawugenebib.weebly.com/uploads/1/3/0/7/130776609/fba38de799ccb7.pdfIn PDF document text
    • https://cdn.sqhk.co/bumogebiz/Aiib9DP/jazanoz.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/ejihdUx/53940781726.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/saxitotufozoxikojowapugi.pdfIn PDF document text
    • http://meetsalle.xyz/what_is_a_basc-341fzk.pdfIn PDF document text
    • https://cdn.sqhk.co/gegojagakexu/bkuo9hd/73829857874.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/xumakomowi/94428475701.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/40679701460.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/o_d_f_ka_full_form.pdfIn PDF document text
    • http://naxesabefadufu.atwebpages.com/xofobonawupagu.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/fill_in_file_online_free.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE54 5508 bytes
SHA-256: da31fbb8d03fffeac2d067eca207cf8d5f1d7846c99110050485369808ccf9b5
font_01_sfnt_off00010123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10123 10688 bytes
SHA-256: 34e9c4082300eb71ff8754c180beb1148a8d3e71ef3cb8d12c6384c8ebfd07f5

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