Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bee3edb6f4f87fb…

MALICIOUS

PDF

67.9 KB Created: 2021-03-04 02:27:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d2e424c57b461bf6eff71488ec1b5b4b SHA-1: 56e0992f2780d72b65ea1e91c110635f1c81c68a SHA-256: 1bee3edb6f4f87fb5567790fd80ef8c34e72c5a808642e04ae299f3f5bcd2387
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://mezovuduw.ru/award?keyword=toshiba+dvd+recorders+for+sale PDF link annotation
    • https://cdn.sqhk.co/pomiziluda/Xzgg7OF/free_wifi_near_me_xfinity.pdfIn PDF document text
    • https://bawidonawasaz.weebly.com/uploads/1/3/4/3/134354070/26fa62fce8.pdfIn PDF document text
    • https://vavawuzozut.weebly.com/uploads/1/3/1/1/131163550/gilafimemuz-wizamixofazub.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/ijgi6ji/new_tik_tok_funny_video_2019_download_sharechat.pdfIn PDF document text
    • https://wewejodoje.weebly.com/uploads/1/3/4/6/134685686/novizawegeguv.pdfIn PDF document text
    • https://witetalujoloxof.weebly.com/uploads/1/3/0/7/130740434/zofepula_nofale.pdfIn PDF document text
    • http://jubivigupowo.iblogger.org/disevuzasud.pdfIn PDF document text
    • https://xafusotegemuwif.weebly.com/uploads/1/3/5/3/135304795/694062.pdfIn PDF document text
    • https://zupalopozaguri.weebly.com/uploads/1/3/2/3/132302876/8371507.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/jaIsMgz/geruvikig.pdfIn PDF document text
    • https://turetufifej.weebly.com/uploads/1/3/4/5/134500159/kareniwivejoxone.pdfIn PDF document text
    • https://sopepulur.weebly.com/uploads/1/3/5/3/135311067/juwalagisanofep.pdfIn PDF document text
    • https://lurenosofen.weebly.com/uploads/1/3/0/7/130740325/voxabuduboj_wikevukolivak_dejosegemuri_fepatiber.pdfIn PDF document text
    • https://sutowuvo.weebly.com/uploads/1/3/4/6/134685384/julomupofojezuvawovo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zaxukesaludu.epizy.com/muzedajafegeb.pdfIn PDF document text
    • http://fejedesa.epizy.com/the_secret_place_ending.pdfIn PDF document text
    • http://xixujoteb.epizy.com/pujesikikekibumenanefujez.pdfIn PDF document text
    • http://zafuriket.rf.gd/25782458058.pdfIn PDF document text
    • http://zukuvib.rf.gd/92467822666.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_off0000ceef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEEF 5260 bytes
SHA-256: 0ae8948dc0afcb047b5b01881d81207f080ba3679d7a70afe8a1231123ff9236
font_01_sfnt_off0000e0cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CD 9848 bytes
SHA-256: bfa143c863612638529cd9f185aad739c1c248df0520fd2584b203de80169d5b

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