Malicious PDF — malware analysis report

Static analysis result for SHA-256 382ad0f9c78c1387…

MALICIOUS

PDF

84.7 KB Created: 2021-03-28 00:05:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b59938871c67e2b44647b634a2c8c6e5 SHA-1: c3f1df67d848a84b080be5086ed9f3b17c2225bb SHA-256: 382ad0f9c78c1387ac97f1e8f5d48887e7037577f4a5d2dc22f50a9da738202e
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 0.9995

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://golowaki.ru/aws?utm_term=sims+3+family+funds+cheat+doesn%2527t+work PDF link annotation
    • http://midakurapujif.mypressonline.com/98834243318.pdfIn PDF document text
    • https://repawuwo.weebly.com/uploads/1/3/5/3/135313919/7785219.pdfIn PDF document text
    • http://samozanyat.info/a_series_of_unfortunate_events_season_1_ending_explained32m7q.pdfIn PDF document text
    • http://voicebftyi.com/the_things_they_carried_ambush1nvj2.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/16572025146.pdfIn PDF document text
    • https://rexerobebaru.weebly.com/uploads/1/3/1/8/131872155/9758761.pdfIn PDF document text
    • http://helplnstagram-confirm.com/dotugojeki734ut.pdfIn PDF document text
    • http://todayshop.website/how_to_clean_spectra_s1_breast_pumppqnov.pdfIn PDF document text
    • http://fodamibokaf.66ghz.com/thinking_with_type_2nd_edition_free.pdfIn PDF document text
    • http://hookup153.site/67234439494gxr1.pdfIn PDF document text
    • http://biwiroxefamir.mywebcommunity.org/over_40_hormone_reset_diet_plan.pdfIn PDF document text
    • https://numixugag.weebly.com/uploads/1/3/5/3/135324818/e781c5628.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gozuketitara.onlinewebshop.net/rusunafabamutisedodakela.pdfIn PDF document text
    • http://zenerunikojovo.epizy.com/charlie_puth_marvin_gaye_piano_sheet_music.pdfIn PDF document text
    • http://xizokenimufewom.atwebpages.com/how_to_sue_the_court.pdfIn PDF document text
    • http://rawigukegopafot.onlinewebshop.net/development_economics_debraj_ray_download.pdfIn PDF document text
    • https://c2093f15-f4fb-4bda-9582-db5404103fa6.filesusr.com/ugd/b28561_47cbe7a7f2f94a23a520cfbbe31221cf.pdf?index=trueIn PDF document text
    • https://4a5bfc55-71df-4474-8f3e-9f6aca65c64b.filesusr.com/ugd/29b6ce_ff79151ab42945c1aa0e8f288e650f21.pdf?index=trueIn PDF document text
    • http://puwomuf.rf.gd/overwatch_hero_guide_mercy.pdfIn PDF document text
    • http://pekiluji.atwebpages.com/calculus_unit_1_test.pdfIn PDF document text
    • http://pixoriwabivonol.rf.gd/cookham_dean_primary_school_ofsted_report.pdfIn PDF document text
    • http://nimanexobubibub.onlinewebshop.net/how_to_assemble_imperia_pasta_maker.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0000f515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF515 5820 bytes
SHA-256: aa6e93dd3677982731c1c1b8cd8ab344f7f5660d43694dd3e0d5cf7e6095c3e0
font_01_sfnt_off000108d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D5 11372 bytes
SHA-256: 7a530017bf97a4a1521ade6849b4803735e70ee18f1ba8ca9b77137ae47aeab8
font_02_sfnt_off00012fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FCF 16104 bytes
SHA-256: 7344026b335e0cba1f0137008c39d55b3777fd0f7c3f33ed204800b2ee817b24

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