Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad00ffba418782f8…

MALICIOUS

PDF

80.4 KB Created: 2021-03-27 23:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 725301d4c56ccecb1daa99dd01ede192 SHA-1: 1e97f90902ae96237d943bca6dd081477cd21139 SHA-256: ad00ffba418782f8ba6566aa477f6e5326ddfcec750da0d5f150f060f814f753
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 0.9993

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://lozipotod.ru/strik?utm_term=royal+caribbean+drinks+package+2020 PDF link annotation
    • http://supermagazforsale1.xyz/98613074621uwyjx.pdfIn PDF document text
    • http://esmoney.site/xafezosixamelogopileassou.pdfIn PDF document text
    • http://goodshopsales.xyz/dagupamapepajafupeobg0a.pdfIn PDF document text
    • http://copyrightnotice-ig.com/jegaxokafegezbl99k.pdfIn PDF document text
    • http://qwonder.space/dofazegamutolowovuzavi7yl54.pdfIn PDF document text
    • https://torofijode.weebly.com/uploads/1/3/5/9/135978969/kowerapefironufebavo.pdfIn PDF document text
    • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/ec4903b.pdfIn PDF document text
    • https://pinobuni.weebly.com/uploads/1/3/0/9/130969003/2674094.pdfIn PDF document text
    • http://idealicacolumbia.site/suvudizowinedojo1dhjs.pdfIn PDF document text
    • http://update-win20.online/23336411943wjsec.pdfIn PDF document text
    • https://depewezuluro.weebly.com/uploads/1/3/4/1/134108544/devebu-mejabuzuti-xizup-sarugokuvafu.pdfIn PDF document text
    • https://fobanuvoba.weebly.com/uploads/1/3/1/6/131637247/5994296.pdfIn PDF document text
    • http://bachanalytics.com/64591902859j3u5u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vovokab.rf.gd/bozanstvena_komedija_dante_alighieri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a41222b-1075-4f74-8f0f-447672325275/is_honey_badger_dangerous.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/50487014773.pdfIn PDF document text
    • http://wewozewifepono.epizy.com/number_theory_project.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f710a92-effd-4daf-8f22-4e9bd40252ab/dewesux.pdfIn PDF document text
    • http://dowiwofijixawo.rf.gd/calendario_sep_2020_19.pdfIn PDF document text
    • http://gofudawaropuz.epizy.com/canon_eos_70d_instruction_manual.pdfIn PDF document text
    • http://nutulizoneket.rf.gd/xutapavagagej.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/xakokukitivukebojuvimu.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/what_happens_when_species_overproduce_offspring.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/dls_2019_profile._dat_file.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/miles_and_huberman_data_analysis.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f99e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF99E 5828 bytes
SHA-256: ba4f29f426a3d00a398c8e3a997f17407f49261dc72d1f7f02b38677879297f6
font_01_sfnt_off00010d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D8A 10984 bytes
SHA-256: 85d553c4841b500afd4548898c9419554b89f1623d891185c568dc12795dfc7a

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