Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ba2d5c8a7a4e6d…

MALICIOUS

PDF

73.9 KB Created: 2021-03-31 01:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 757ecb810f89d1339848ee1476a97465 SHA-1: 5e785cff49bab1242beaa877d4f0f9b7bb1cf7c8 SHA-256: d7ba2d5c8a7a4e6df85f5c39ee1708c604ac553d81edbc5d1c5d72b4023d622e
66 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains and link farms, indicating a likely attempt to redirect users to malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests a phishing or malware distribution vector. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/award?keyword=artificial+sweeteners+list+pdf PDF link annotation
    • http://titoto.xyz/altered_carbon_book_vs_show_season_2kkt24.pdfIn PDF document text
    • https://kufoxigokutef.weebly.com/uploads/1/3/1/8/131856815/wanegusomugefuz_lotareru_fudurinadupanem.pdfIn PDF document text
    • https://nirasiban.weebly.com/uploads/1/3/4/3/134344158/kagozanuzafobozes.pdfIn PDF document text
    • http://rodina38.ru/wuvuvedorijawurovonamojifj5zmh.pdfIn PDF document text
    • http://usacreditcheck.info/nurisedimclzc8.pdfIn PDF document text
    • http://coins24h.com/kulibelikigajunapm7e5.pdfIn PDF document text
    • https://sitimewodojex.weebly.com/uploads/1/3/1/8/131856527/1073eb7c.pdfIn PDF document text
    • http://jisutuxoxaza.medianewsonline.com/jafuli.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/41990020528.pdfIn PDF document text
    • https://kosodakugup.weebly.com/uploads/1/3/4/6/134655388/9940134.pdfIn PDF document text
    • http://memaberenux.scienceontheweb.net/smoothie_king_job_application.pdfIn PDF document text
    • http://tamakedesununod.mywebcommunity.org/what_is_graphic_design_all_about.pdfIn PDF document text
    • http://formverifiedbadge.com/photo_transfer_app_android_to_pcwtirx.pdfIn PDF document text
    • http://austritkfa.com/36609249954pizlx.pdfIn PDF document text
    • http://tanijijud.sportsontheweb.net/google_maps_api_v3_tutorial.pdfIn PDF document text
    • http://how2clever.com/683796285797e78v.pdfIn PDF document text
    • http://vozivovog.scienceontheweb.net/how_to_set_defrost_timer_on_true_freezer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wometopususap.rf.gd/35158633932.pdfIn PDF document text
    • http://lonozixugixapap.epizy.com/arnold_schwarzenegger_the_new_encyclopedia_of_modern_bodybuilding.pdfIn PDF document text
    • http://lekowezitodog.rf.gd/49714884108.pdfIn PDF document text
    • http://witozarelopisi.rf.gd/autolink_al301_codes_list.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_off0000e586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE586 5228 bytes
SHA-256: 3e0bab6dfa98785360a9b814bd420daa881ee53b5da0568fd4408f75f6695ba1
font_01_sfnt_off0000f772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF772 10196 bytes
SHA-256: e3fa592d4699e32d3aa0ce8eec08bcfb7b0a637e52b07d98390ee972e0395620

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