Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ee939ccaec1d551…

MALICIOUS

PDF

74.4 KB Created: 2021-03-13 15:08:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e6962c2808124b30467c266c64468389 SHA-1: 2a370e6a8957de94471c2d67fcd5428dfc09ecd1 SHA-256: 7ee939ccaec1d5517e33cba1ed60deec8de7336aee48bff228fb771302aebc9a
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 0.9997

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=dibujo+de+caras+para+colorear PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368492/normal_6030ee1f7f2d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420459/normal_602f5c7f38b1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390661/normal_60189fa9c4cae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412183/normal_6018b08b08983.pdfIn PDF document text
    • https://cdn.sqhk.co/bapulofuw/ibgcjtZ/flying_jatt_2_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pulisamog/7rnwfjg/fesona.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425909/normal_5fdadfaa1f238.pdfIn PDF document text
    • http://watogoda.mypressonline.com/80835863914.pdfIn PDF document text
    • https://cdn.sqhk.co/daguvemet/idqihPk/zopokaverezepel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379719/normal_6009f58d3720b.pdfIn PDF document text
    • http://jisetatiloro.scienceontheweb.net/five_nights_at_freddys_theme_song_roblox_id.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386848/normal_5fd039ea9ed9a.pdfIn PDF document text
    • https://cdn.sqhk.co/tesosunimew/r5ghgRO/82943528527.pdfIn PDF document text
    • http://laxeded.iblogger.org/12565330637.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485587/normal_603bf42ebe6e8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c056e51-8527-495b-8872-4ab62d1ed705/zasenijenox.pdfIn PDF document text
    • http://susodiwur.epizy.com/bmw_x1_owner_s_manual_2018_uk.pdfIn PDF document text
    • http://pevukotexape.rf.gd/how_to_use_rug_doctor_carpet_machine.pdfIn PDF document text
    • http://bigofuzov.epizy.com/animation_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5219990-4bef-4c0e-ad7d-d1c6bfe99fd9/24647023778.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_off0000e55e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55E 5280 bytes
SHA-256: 09cac65a128a7b405e7388c92960139a398f8fd9431276063fb5acbb31f92738
font_01_sfnt_off0000f75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75F 10776 bytes
SHA-256: 8aff2487eaf6792eecac63df6b99d84c622e3285fb2cc4623c24ef53deaa99c7

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