Malicious PDF — malware analysis report

Static analysis result for SHA-256 3012bd82fb86ea9a…

MALICIOUS

PDF

76.8 KB Created: 2021-02-23 13:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f1a32c3e96c2a0e4670188d5e1f8b213 SHA-1: ac49dbf954e2cdd4c3c8574bd57a54c7dbff2560 SHA-256: 3012bd82fb86ea9a4855fb47cf1bf0deb195a0cb647754d96dc1405a5963c659
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting it's part of a link farm or SEO spam operation. The embedded URL 'https://seumenha.ru/strik?utm_term=yamasa+slot+machine+tokens' is a primary indicator of the lure used to attract victims.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://seumenha.ru/strik?utm_term=yamasa+slot+machine+tokens PDF link annotation
    • http://goodnaturak.space/tiponauzkzr.pdfIn PDF document text
    • https://nidikibadut.weebly.com/uploads/1/3/1/4/131453007/nediper_baniboturi_xijib_fajosudol.pdfIn PDF document text
    • https://gubukaxonular.weebly.com/uploads/1/3/5/3/135349028/fdb01711d26f.pdfIn PDF document text
    • https://jizufuvarax.weebly.com/uploads/1/3/1/1/131164460/jinokew_wumitu_repep_domumasa.pdfIn PDF document text
    • https://nevomunetis.weebly.com/uploads/1/3/0/7/130740414/rawivel_zulofegasilezej_papus.pdfIn PDF document text
    • https://pivazadigemeza.weebly.com/uploads/1/3/4/6/134642233/4654155.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/D5vp8ie/ivry_sur_seine_val_de_marne_france.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/jn2Apgf/pixel_3_force_restart.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vatekovinewuwa.epizy.com/bevibusadalipevenezizor.pdfIn PDF document text
    • http://vapedefomagejev.epizy.com/what_is_the_median_uk_household_income.pdfIn PDF document text
    • http://bebukoruwuru.epizy.com/d_c_r_ka_full_form.pdfIn PDF document text
    • http://bisapejavi.epizy.com/bejidur.pdfIn PDF document text
    • http://nononon.epizy.com/54844273859.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/50181476588.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/free_able_cardinal_bird_pictures.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_off0000ec9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9B 4968 bytes
SHA-256: 442a6de4e48765ebc01bca3a390f539544cf3a6a68e984955493dad341b52cb1
font_01_sfnt_off0000fd5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5D 12252 bytes
SHA-256: e8f196e9261d8163d5ba00bf21f1497dea33e02699de6660f44251d66ce78dfd

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