Malicious PDF — malware analysis report

Static analysis result for SHA-256 0800a65cfa2ca546…

MALICIOUS

PDF

79.7 KB Created: 2021-03-11 09:28:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: b7c298e8e5f7793ea5fb9ba97ab8dd6c SHA-1: 88e35ef3ad3bda76e8d419a7a0246d11a375bb9c SHA-256: 0800a65cfa2ca5464502a6db5fe92d9111784518ce4e386ae871c89e2cfddd60
126 Risk Score

Malware Insights

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

This PDF document is classified as malicious by ML and ClamAV, indicating a phishing or trojan-like behavior. It contains numerous embedded URLs, with a primary external URI pointing to a suspicious domain, likely serving as a lure for users searching for streaming service information. The document's structure and extensive link farm suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://maypoin.ru/strik?utm_term=can+i+get+amazon+prime+on+roku+streaming+stick PDF link annotation
    • https://cdn.sqhk.co/fosojatesog/ggfgeic/elements_financial_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/2ijDjfG/xikalufigireb.pdfIn PDF document text
    • http://itclick.info/irobot_roomba_630_manual44i4h.pdfIn PDF document text
    • http://nigma24invest.online/como_plantar_abacaxi6zo37.pdfIn PDF document text
    • http://pedron.fun/31206890149szva1.pdfIn PDF document text
    • http://gododerur.66ghz.com/13021744365.pdfIn PDF document text
    • https://cdn.sqhk.co/begokaxawip/Aicgejf/nike_run_club_app_apple_watch_series_1.pdfIn PDF document text
    • https://cdn.sqhk.co/xibetevoxaj/2nhgyge/bilovudak.pdfIn PDF document text
    • http://4gusevshop.space/zajoronavixawomuno8682g.pdfIn PDF document text
    • http://goldstein.berlin/drive_by_daniel_pinkvca1i.pdfIn PDF document text
    • http://bodegumuxizobi.22web.org/bolep.pdfIn PDF document text
    • http://ergors.space/after_school_program_formsobcy4.pdfIn PDF document text
    • http://varistop.site/bird_box_cast_imdbislsz.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://769966b8-4adc-437e-bba8-f198cf6e171b.filesusr.com/ugd/41a0b6_ae176a51d71a4e01bbbfc7f25f3ee93f.pdf?index=trueIn PDF document text
    • https://b01cffea-7a05-49e8-9781-04202a21c04b.filesusr.com/ugd/d5d855_e5f87065906949bd8657fe001b5d8057.pdf?index=trueIn PDF document text
    • http://zuvidetalenaras.epizy.com/aprendizaje_basado_en_problemas_ejemplos_matematicas.pdfIn PDF document text
    • http://putiremupupunis.epizy.com/john_deere_4440_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/22589937121.pdfIn PDF document text
    • https://e7ba4f66-d023-404d-a355-a5b98970f127.filesusr.com/ugd/cac9e4_1e18d2a5bdfd4290bbb0583b5032e1e9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bugutaj/gesaluruvu.pdfIn PDF document text
    • http://jakezijaredu.epizy.com/68912378996.pdfIn PDF document text
    • https://e942959e-95af-4115-ab05-a6e38533eaad.filesusr.com/ugd/66f7a0_2d4aa3c947034a9699a67033b65d5c87.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/robbery_bob_2_unlimited_game.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_off0000ed81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED81 5240 bytes
SHA-256: 7a6a2d018d38c4cf17b557dd407a6e9e4cff68f48c92e84497a07513f44277c7
font_01_sfnt_off0000ff4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4E 10460 bytes
SHA-256: 2ab45ed17a154fcbbd61e9a44c3b80ab2cffd91d36c7eff7226c8ac5c1805a8a
font_02_sfnt_off000122f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122F5 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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