Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2aaac700fcc2cc…

MALICIOUS

PDF

41.1 KB Created: 2020-11-09 04:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 2179c65efb761d26014fac3f20774ec9 SHA-1: d7e5a8da8446943bfecf5c24fd0430a420d2e184 SHA-256: 8e2aaac700fcc2ccbae543763b7b64af87c6d838e57f39255112d8fa7b659fd7
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/aws?keyword=creation+worksheet+preschool+printable In PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/vibegigiwanubep-wekimumage-xikunozisisano.pdfIn PDF document text
    • https://mezuxanivatanid.weebly.com/uploads/1/3/4/4/134499991/gomujuxe_supuvugu_ruvogapipezare.pdfIn PDF document text
    • https://jipidonano.weebly.com/uploads/1/3/4/3/134340070/3394895.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/jagufarepa.pdfIn PDF document text
    • https://fufajogaxofamu.weebly.com/uploads/1/3/4/6/134627879/lanud_migupadukegir_litidit.pdfIn PDF document text
    • https://dawugagulinejud.weebly.com/uploads/1/3/4/3/134368664/75953fab310ed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://pafegum.files.wordpress.com/2020/11/xumakosokidazok.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/papa_louie_2_games_free_attack_cool_math.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d03eec2b-094e-49bc-8f60-c577861b05bf/82150386587.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/relowosegodakapa.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/fedolunubixudomidotek.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/view_snapchat_profile_online.pdfIn PDF document text
    • https://lonofoxov.files.wordpress.com/2020/11/19943643404.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/93828067712.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_off00006192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6192 5220 bytes
SHA-256: 3a82f9840cbbd7fcf78226ddc99ca6c88dac13cd39d06321a9cd23a27725174d
font_01_sfnt_off0000735c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x735C 10636 bytes
SHA-256: 9a5a306324221907de580206e3b76f36d5c09d6af423aee060e02617969b0a5e

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