Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee965cf1ac99faa2…

MALICIOUS

PDF

74.4 KB Created: 2021-03-10 00:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9b94f5c7831f3a047dacc98d3132d2fb SHA-1: 272dfe34aa20d47442e0790bcf58ecab30c22b19 SHA-256: ee965cf1ac99faa239100fff98f470ca9643fec089064b065afe7d7ed45ca8b8
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://botokaw.ru/123?utm_term=pushpaka+vimana+songs PDF link annotation
    • http://poputitekokukad.iblogger.org/the_united_colors_of_benetton_campaign_history.pdfIn PDF document text
    • http://static-get.top/79491065760j0bpb.pdfIn PDF document text
    • http://kraftmann.su/99904644175jj9fj.pdfIn PDF document text
    • http://jujigosobo.iblogger.org/46182953228.pdfIn PDF document text
    • http://tovelksa.website/attempted_murder_us_codek95pe.pdfIn PDF document text
    • http://mixumawetogufik.22web.org/mogukuko.pdfIn PDF document text
    • https://sulomotosepotu.weebly.com/uploads/1/3/4/7/134744650/zavefelu-piril-zazitiju.pdfIn PDF document text
    • http://czecheducation.space/cool_fancy_text_generator_mod_apkc50x3.pdfIn PDF document text
    • https://seguronudolag.weebly.com/uploads/1/3/4/4/134468074/faboxefalepumut.pdfIn PDF document text
    • https://lefoteliwe.weebly.com/uploads/1/3/4/0/134095852/b155b868126b1d.pdfIn PDF document text
    • http://lady-bug.club/2005_acura_tl_manualkepo9.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
    • https://s3.amazonaws.com/xifabilejilab/fezifevabetokijuvulat.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/surevosekefol.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/how_to_program_a_remote_to_a_roku.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/blynk_arduino_apk.pdfIn PDF document text
    • http://rafodize.rf.gd/38659959059.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e11a954-aad7-4057-8da2-fcde18c475f5/sears_kenmore_washer_dryer_stacking_kit.pdfIn PDF document text
    • http://levewome.epizy.com/princess_diaries_volume_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b304c11a-2b28-4db1-8bb0-5fbc3384603e/what_is_the_secret_menu_at_wendys.pdfIn PDF document text
    • http://pejonoma.epizy.com/63630147263.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF00 4912 bytes
SHA-256: 4120f26f29274f81fdc77d41ece1d0cb2f7463689cf898f5e7d11194ece66464
font_01_sfnt_off0000df8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8C 15040 bytes
SHA-256: 6c1f14bc33f168ce99cee765cf9f229765cd14db37d41f8ebafa0da5a3cc36cb
font_02_sfnt_off00010e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E91 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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