Malicious PDF — malware analysis report

Static analysis result for SHA-256 edee17e59616f97e…

MALICIOUS

PDF

75.6 KB Created: 2021-03-23 06:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: f5a99a01a45bfcb31c8fb9781c6b737e SHA-1: ce9132db356a303e6a46738dd2e3465d7624e679 SHA-256: edee17e59616f97e698347370b31b2200199460c26109665652421f970f2a7f5
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, with one specifically pointing to a site that appears to be distributing malicious content disguised as installation software. The PDF's structure and the presence of external links suggest it is part of a phishing or malware distribution campaign.

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/strik?utm_term=epson+artisan+835+installation+software PDF link annotation
    • https://nimafomu.weebly.com/uploads/1/3/2/7/132710507/6984659.pdfIn PDF document text
    • https://dubobovutorikug.weebly.com/uploads/1/3/5/3/135332124/zukurop.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/jhquFjf/mineral_wells_high_school_football.pdfIn PDF document text
    • https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/fizibad_xevikebaxo.pdfIn PDF document text
    • http://fakurivevid.scienceontheweb.net/pomagugokafopukafimiwip.pdfIn PDF document text
    • https://kiteginizi.weebly.com/uploads/1/3/1/8/131871518/wevewamas.pdfIn PDF document text
    • https://cdn.sqhk.co/rolaravez/hhajigi/battle_angel_alita_manga_pl.pdfIn PDF document text
    • https://cdn.sqhk.co/larovejadeb/KGngxid/tepawogalew.pdfIn PDF document text
    • https://cdn.sqhk.co/lepagesali/gfa8jhO/mekibo.pdfIn PDF document text
    • https://cdn.sqhk.co/jomenuluz/feI1gfp/laximipedevenototipo.pdfIn PDF document text
    • http://xupulakikovuxo.mypressonline.com/xipepe.pdfIn PDF document text
    • https://vajunepiw.weebly.com/uploads/1/3/2/6/132681590/2181101.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruxuwidoke.epizy.com/abcd_mahi_teri_chunariya_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbeee8ed-7f72-41e3-9749-c217e1aaa22e/english_grammar_tenses_checker_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef66c4e3-5cdf-4d9b-9287-bb5a34ebb67a/honeywell_programmable_thermostat_rth2300b_wiring.pdfIn PDF document text
    • http://pajamubo.rf.gd/free_checkers_game_full_version.pdfIn PDF document text
    • http://wegamaluperetuj.atwebpages.com/tukewurezekobunor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02e3ff03-1ab5-47aa-bf3b-a6c5dfe35b3c/is_26_too_old_to_get_married.pdfIn PDF document text
    • http://xabasib.rf.gd/free_printable_alphabet_writing_worksheets_for_kindergarten.pdfIn PDF document text
    • http://vekejuf.atwebpages.com/dixesenoza.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_off0000e8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F9 5428 bytes
SHA-256: 130de37d116a8d2bba7f0decce33c3f0e49c9e6902d3037fd80befc1385d2c18
font_01_sfnt_off0000fb8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8D 10832 bytes
SHA-256: 3dbb7c6c5c9f2810706f9c72cbec3e7db0de46ec2afd6e4c5dbed4d646be8b8c

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