Malicious PDF — malware analysis report

Static analysis result for SHA-256 a82c448a349b20b6…

MALICIOUS

PDF

65.9 KB Created: 2021-02-23 05:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69ce5141b1f27dc9fb156f3e686be85d SHA-1: d16ae450d55fddfee941c6d20442080ed2b46ec8 SHA-256: a82c448a349b20b6c1852304bb8929d576a294e0d53c7bbbf1fe091c116b5357
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/123?utm_term=netters+anatomy+colouring+book PDF link annotation
    • http://kyponnik.online/riguziflmru.pdfIn PDF document text
    • http://geniputan.66ghz.com/schitts_creek_episode_guide_season_1.pdfIn PDF document text
    • http://podjem2.club/my_dog_is_staring_at_nothing_and_sha4lelh.pdfIn PDF document text
    • https://zibezalobe.weebly.com/uploads/1/3/4/5/134529300/povoreleke_debijutuwed_vexugixijudifu_wawivibidu.pdfIn PDF document text
    • http://getcreditcheck.info/antivirus_for_windows_10_prom24v7.pdfIn PDF document text
    • http://checkyourcredit.info/asterix_y_obelix_personajes_romanoszdrqo.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/gfghVuj/dolevunefawuzed.pdfIn PDF document text
    • https://sepuzudagek.weebly.com/uploads/1/3/5/3/135329554/32f29f4c8d.pdfIn PDF document text
    • https://rakositove.weebly.com/uploads/1/3/4/5/134595637/tetidob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dozudaz.epizy.com/symmetry_of_functions_worksheet.pdfIn PDF document text
    • http://jenepopavuse.epizy.com/kurifodopebunokes.pdfIn PDF document text
    • http://xoxadexol.rf.gd/african_queen_by_blackface.pdfIn PDF document text
    • http://konevimojo.epizy.com/play_store_pro_apk_uptodown.pdfIn PDF document text
    • http://vibejasejejake.epizy.com/43714098343.pdfIn PDF document text
    • http://natadomemorad.epizy.com/intermediate_algebra_practice_test_with_answers.pdfIn PDF document text
    • http://rodiwube.epizy.com/17689447123.pdfIn PDF document text
    • http://lozopavo.rf.gd/fuziniwupidabovoziwume.pdfIn PDF document text
    • http://xufeguwopox.rf.gd/vomaworopotufupepul.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_off0000c538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC538 5396 bytes
SHA-256: 6355af6d0fcf5bc8b167b102320a8a9d4a3d4bebeb9490c65182354d83344aad
font_01_sfnt_off0000d78f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD78F 10340 bytes
SHA-256: 49a88a9bd2ecf35b5daf7596aa826d9b770509fd302239b5f5bc290062608575