Malicious PDF — malware analysis report

Static analysis result for SHA-256 0852262d0684de82…

MALICIOUS

PDF

77.6 KB Created: 2021-03-23 22:41:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c06fedfd9eddfb0c4a4e2d93603b5303 SHA-1: 3ec186c2e589512e69536afc288c3314c64571d3 SHA-256: 0852262d0684de8226cea69356f542578460cc544b497d4b3dd6802e10c05988
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 0.9996

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://gimoguvi.ru/strik?utm_term=best+shooting+drills+for+middle+school+basketball PDF link annotation
    • https://nurafotupitu.weebly.com/uploads/1/3/4/4/134495453/6293b6b990.pdfIn PDF document text
    • http://vivubowi.getenjoyment.net/5426274620.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/HAhcCij/damigudawinami.pdfIn PDF document text
    • http://xibawolafubiz.getenjoyment.net/exemplo_de_um_texto_argumentativo.pdfIn PDF document text
    • http://genurufitexuge.iblogger.org/how_to_turn_on_hotspot_hot_tub.pdfIn PDF document text
    • https://favotofuti.weebly.com/uploads/1/3/1/8/131871633/8958240.pdfIn PDF document text
    • https://gupovokezatiku.weebly.com/uploads/1/3/4/8/134878629/6d5a039a283e.pdfIn PDF document text
    • https://sijodeteketede.weebly.com/uploads/1/3/4/4/134486162/f11c36ae.pdfIn PDF document text
    • https://bupebilonozopi.weebly.com/uploads/1/3/4/8/134861312/fivimelos.pdfIn PDF document text
    • https://cdn.sqhk.co/wesebewoweva/tgehfwH/langrisser_mobile_global_banner_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/rowemarul/aghPXgh/best_light_meter_app_free.pdfIn PDF document text
    • https://paduxadoduxim.weebly.com/uploads/1/3/0/7/130775016/fumutexanoferi.pdfIn PDF document text
    • http://bebalezuve.medianewsonline.com/xenophon_anabasis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wagonofenokov.rf.gd/jarat.pdfIn PDF document text
    • http://kemufare.epizy.com/how_do_you_know_if_a_redox_reaction_is_spontaneous.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d20c737-7207-4473-a853-7964f8bba558/6186914825.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53e7f6d9-c7dc-43af-a483-0022c4f3ed5a/banijilejugeteboniwuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bd78330-0477-49a8-8daa-e2fa729b74ab/sefoxesovajakonemijez.pdfIn PDF document text
    • http://suserige.rf.gd/zakutabilana.pdfIn PDF document text
    • http://viwuwijagabote.myartsonline.com/automating_the_boring_stuff_with_python_free.pdfIn PDF document text
    • http://nugagopi.epizy.com/sistem_pemerintahan_amerika_serikat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e58f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58F 5688 bytes
SHA-256: 6e09b92f9ec72f0fd8bb36eb60a7bac4784d42cbdbe2cdf21355570f514e3151
font_01_sfnt_off0000f8bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BC 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off0001014a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1014A 10964 bytes
SHA-256: e58b653433fe791540de5b05d30dd3ff9787ac1d2448b94085b799453a272ce3

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