Malicious PDF — malware analysis report

Static analysis result for SHA-256 6880fe777f1294e6…

MALICIOUS

PDF

77.9 KB Created: 2021-03-01 16:34:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f720e9c4562f834a3a5c1643a9f6706e SHA-1: 0e95ab3fe818ea2b48982cf66f39905d584de742 SHA-256: 6880fe777f1294e6098ed90290f52d17076f990c68409d4a1a7fc081860da3fd
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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/award?keyword=acer+laptop+battery+price+in+sri+lanka PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5fd3a0cd4350f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420610/normal_5ff56f2ab5ef6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418746/normal_6009c7bb232ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374536/normal_6027eb1429eec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477373/normal_5ff504bf5198e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391302/normal_5ff97f84e5c7d.pdfIn PDF document text
    • http://ital-tess.space/sovatomunezegebibatotufowx4foq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454436/normal_6038069919590.pdfIn PDF document text
    • http://xrootunited.com/how_to_fix_samsung_s9_speakertusrr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473044/normal_600eed9b75d67.pdfIn PDF document text
    • http://xufunuduxatene.iblogger.org/social_media_strategy_template_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473062/normal_602126bae0b15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pomirunorejuso.epizy.com/bharathidasan_university_distance_education_convocation_form.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/adobe_audition_3._0_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/77521992905.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/mixava.pdfIn PDF document text
    • http://vidomolojo.epizy.com/najuvuwulolewudata.pdfIn PDF document text
    • http://zemuzokaba.epizy.com/512552086.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_off0000ea84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA84 5220 bytes
SHA-256: 3a70699d350241117813c52d58ef4ddb35f074fd1f3b454b196e537836378cfc
font_01_sfnt_off0000fc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC5D 14912 bytes
SHA-256: 25ff5d030ee1ff49d0ed071804d1e7cdae47186a11ccb7157e648f171fab5ffc