Malicious PDF — malware analysis report

Static analysis result for SHA-256 19101dd802eb3de8…

MALICIOUS

PDF

79.0 KB Created: 2021-04-03 06:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 28f8c75355a132f58bc849cd043dfba2 SHA-1: 209b3b1cb0cdbba029f4d40f349f537016fa9c2b SHA-256: 19101dd802eb3de81fec72e90b1f1030eefecc295d43f33e08e16e53431ccdad
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dafemum.ru/123?utm_term=cartoon+print+bed+sheet In PDF document text
    • https://cdn.sqhk.co/nepajenine/jniJhad/joint_birthday_party_themes_for_boy_and_girl.pdfIn PDF document text
    • https://cdn.sqhk.co/nepofigiper/bjaiblS/king_tongue_hack_apk.pdfIn PDF document text
    • https://gosidobesek.weebly.com/uploads/1/3/4/0/134017516/rowenoxidojizup.pdfIn PDF document text
    • https://cdn.sqhk.co/xidatelo/ifhbsgj/vokugabexakidemevewamik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413118/normal_5fc5aab613f8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426550/normal_603fc9ff4e543.pdfIn PDF document text
    • https://nakabupibuf.weebly.com/uploads/1/3/4/6/134608610/392056.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422392/normal_604a346c76adf.pdfIn PDF document text
    • https://xatevixi.weebly.com/uploads/1/3/4/6/134651360/1a603f3de0781.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/HijJicR/space_pirates_vr_oculus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jupuluna.epizy.com/7686577691.pdfIn PDF document text
    • http://fufopabi.rf.gd/kapekefovujaguxuwog.pdfIn PDF document text
    • http://kedixiravupit.epizy.com/hexanes_safety_data_sheet.pdfIn PDF document text
    • http://nugifola.rf.gd/production_technology_of_medicinal_and_aromatic_plants.pdfIn PDF document text
    • https://06e27459-8a58-4d01-a48e-f853eab966f6.filesusr.com/ugd/55f1a0_161ec196c2f0441d879b8625c1105eee.pdf?index=trueIn PDF document text
    • https://b6e49935-6d58-4bde-831f-6e0b746776d3.filesusr.com/ugd/7d321f_e5f44c5719bd445f9613b29f8b5f5698.pdf?index=trueIn PDF document text
    • https://995be609-08d3-41b1-a6c0-90e53670bcec.filesusr.com/ugd/9988e1_f668c3cec7b34c50b35a87a9a61d4047.pdf?index=trueIn PDF document text
    • http://fefemegazo.rf.gd/4g_voice_call_app_for_pc.pdfIn PDF document text
    • http://xabuduzefaf.epizy.com/the_online_piano_tutor_book.pdfIn PDF document text
    • http://fudapigoxuwumu.rf.gd/franz_liszt_hungarian_rhapsody_sheet_music.pdfIn PDF document text
    • http://mapegolirij.epizy.com/teori_akuntansi_sektor_publik.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_off0000f8b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B7 5060 bytes
SHA-256: 8dff902ff54e1a4fcbf22723ed20a1e34752e5d9d0cbe97af7a4f31bef166734
font_01_sfnt_off000109d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109D2 10896 bytes
SHA-256: 9424326cfdf6da58f3847d29b891e1b46931912bc7854bc7d51428ee6e75f1b0