Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ebeb6bf69a96d29…

MALICIOUS

PDF

80.6 KB Created: 2021-05-08 04:14:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: bb88481d93feb2b85562d0a7ec622b9e SHA-1: 357773431a97727bd6a44ad48d3f5baf75cb6a98 SHA-256: 7ebeb6bf69a96d29c063c15aff7bfdc197378396200c40fabf53a7366189c026
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many of which are part of a link farm designed to direct users to potentially malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/strik?utm_term=canon+pixma+ip90+printer+driver PDF link annotation
    • https://cdn.sqhk.co/togokitaz/ibgjOgc/my_talking_angela_2_game_free_download.pdfIn PDF document text
    • http://flipping-car.online/introduction_to_genetics_vocabulary_review_answer_keyu5rjx.pdfIn PDF document text
    • https://gowutejuvotebap.weebly.com/uploads/1/3/4/3/134372770/sasolebaxudibo_renudajile.pdfIn PDF document text
    • http://d2-club.ru/sketchup_download_modelsf09qz.pdfIn PDF document text
    • https://mewofotas.weebly.com/uploads/1/3/4/5/134524455/muxoker.pdfIn PDF document text
    • https://dazifonawifebi.weebly.com/uploads/1/3/4/7/134763946/5782201.pdfIn PDF document text
    • http://fitokaps.xyz/93125703405m3xai.pdfIn PDF document text
    • http://meetsucre.pro/champion_3500_dual_fuel_generator_manual0ynip.pdfIn PDF document text
    • https://nagobajega.weebly.com/uploads/1/3/1/3/131380413/mofexuxipolo.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/hcmbIge/barbie_dreamhouse_adventures_game_download_for_pc.pdfIn PDF document text
    • https://digokevun.weebly.com/uploads/1/3/4/7/134747151/vebarumanuteguw.pdfIn PDF document text
    • https://pekupepavipojev.weebly.com/uploads/1/3/1/8/131872203/4966351.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/vitasulobanariraxep.pdfIn PDF document text
    • https://kevosenebiv.weebly.com/uploads/1/3/1/8/131871602/nigutakep.pdfIn PDF document text
    • https://cdn.sqhk.co/tinodifozeza/giX02rS/garebuxara.pdfIn PDF document text
    • http://conicppjry.bid/craftsman_pyt_9000_parts_manual5pcdk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7fe6b731-3703-45da-bcbe-faf39b4d3392.filesusr.com/ugd/880a7e_e907dc02aa154c1ab982bd29742a9de8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sizabo/wigunijexeben.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/soxoniros.pdfIn PDF document text
    • https://a96990da-dd17-4b11-844c-aba2d588d1b6.filesusr.com/ugd/5e5e7b_51a749adbce94a769d5d6be08566a512.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/bell_s_palsy_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/birla_mandir_delhi_information.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/ripukeni.pdfIn PDF document text
    • https://ba428ff1-d53d-4eb5-bdb2-cc960067f420.filesusr.com/ugd/7041e4_8b40eb1d5ab4484bac665ebdfe9f3742.pdf?index=trueIn PDF document text
    • https://d5f1d3db-1598-48d0-a061-764c190a6564.filesusr.com/ugd/866690_aaab5edefdeb456eb75936ec440da87d.pdf?index=trueIn 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_off0000fe3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3F 5228 bytes
SHA-256: 805184659b19b64ac7aa500f5a6e3926262f971fe203477f627c495de9d61159
font_01_sfnt_off00010ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF4 10720 bytes
SHA-256: 6d50f07df5ac4523486068020e427d36030cd09113e08a165ad56b874ce5ad25

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