Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0359d0c392cb73…

MALICIOUS

PDF

77.8 KB Created: 2021-03-20 03:08:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3def38e8b7d61cf20cb5b53a89d03c3c SHA-1: 14419878fab588c6af7da6202d55b5097432c01a SHA-256: 0e0359d0c392cb7326b91117de1dae5c1482782ff1386fc444845e1abb244796
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/123?utm_term=benaam+rishta+song++pagalworld PDF link annotation
    • http://zitugaxusi.mygamesonline.org/58334146102.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488855/normal_6040751250cf2.pdfIn PDF document text
    • https://cdn.sqhk.co/kelifevaz/ichiaIX/gegorirew.pdfIn PDF document text
    • http://nefozufovi.scienceontheweb.net/83842169555.pdfIn PDF document text
    • https://cdn.sqhk.co/jorawuge/gfA6icf/hannibal_movie_mp4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495526/normal_6035d5ae88242.pdfIn PDF document text
    • https://cdn.sqhk.co/lokuwanij/inghija/75591101424.pdfIn PDF document text
    • http://pevazaw.mypressonline.com/65383284737.pdfIn PDF document text
    • https://cdn.sqhk.co/jakovenuz/E8ae0hh/mediaplatform._streaming_media_hosting.pdfIn PDF document text
    • http://detodefinedex.22web.org/formet_elik_kap_istanbul_merkez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://dimegebewode.epizy.com/vivopamekod.pdfIn PDF document text
    • http://ridabus.epizy.com/asap_mob_hella_hoes_mp4.pdfIn PDF document text
    • http://gozegatunefafet.epizy.com/angna_padharo_maharani_mr_jatt.pdfIn PDF document text
    • http://vawirir.atwebpages.com/98131081347.pdfIn PDF document text
    • http://purubonosarule.rf.gd/supplier_quality_assurance_manual.pdfIn PDF document text
    • http://kuviwobabevi.epizy.com/50118517082.pdfIn PDF document text
    • https://6776ac3f-883f-499f-bc52-38dff818ec46.filesusr.com/ugd/969751_1ec7340b6de84de59d6d41cd799dc800.pdf?index=trueIn PDF document text
    • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_6dd012eea7c64fdcbd2caeb5d172512d.pdf?index=trueIn PDF document text
    • https://abe99a74-823b-4c5d-85d6-f8d8de52422f.filesusr.com/ugd/73cc63_9b886b65d926419ab7df8c80877f513c.pdf?index=trueIn PDF document text
    • http://fuzezufomazo.rf.gd/blue_is_the_warmest_colour_online_subtitrat_in_romana.pdfIn PDF document text
    • http://solatilexi.epizy.com/what_is_the_natural_boundary_between_france_and_spain.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_off0000e5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B7 5304 bytes
SHA-256: 455a7280f03f91869d99568097371f4539b17fdb8ff1a96a7a125c878bd695e0
font_01_sfnt_off0000f79d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF79D 11268 bytes
SHA-256: b944ba810209c75f1533a98f20544aa28d74d0baf3aa91604d8067fd489157b1
font_02_sfnt_off00011ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CED 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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