Malicious PDF — malware analysis report

Static analysis result for SHA-256 75492a43d0afeddd…

MALICIOUS

PDF

69.3 KB Created: 2021-03-04 06:51:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 171204af3d163cb1c394404d4b97c3ac SHA-1: 15a104e5c9241f58843f7e7f58e3d9cdc5bad48d SHA-256: 75492a43d0afeddd4907122ed4c1fe7a1e507a11128872d5eefee009017f4047
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/award?keyword=twilight+graphic+novels+online+free PDF link annotation
    • http://com-copyrighit.com/sheet_metal_fabrication_jobs_in_dubaidotg4.pdfIn PDF document text
    • http://pixxel.life/windwalker_monk_dual_wield_or_2h_shadowlands0m6dj.pdfIn PDF document text
    • https://firalikagux.weebly.com/uploads/1/3/2/7/132740609/moropolexabedu.pdfIn PDF document text
    • https://safupoxex.weebly.com/uploads/1/3/2/6/132683070/4b76c10f5.pdfIn PDF document text
    • https://sojuseruk.weebly.com/uploads/1/3/4/3/134367588/4fdbe1.pdfIn PDF document text
    • http://creditpm.com/suxiliworezejas7gs8x.pdfIn PDF document text
    • https://kajugomurabamuj.weebly.com/uploads/1/3/0/8/130814292/1136138.pdfIn PDF document text
    • http://vuxiparami.22web.org/73057351742.pdfIn PDF document text
    • https://sezunugavekavo.weebly.com/uploads/1/3/5/3/135321765/1441977.pdfIn PDF document text
    • https://fumeseteno.weebly.com/uploads/1/3/1/4/131483149/sopimo.pdfIn PDF document text
    • http://medicinfo.online/how_to_find_calculator_on_ww_appx0p8n.pdfIn PDF document text
    • http://krokoboko3.xyz/kali_linux_raspberry_pi_2_downloado2qm8.pdfIn PDF document text
    • https://xukifunizagopo.weebly.com/uploads/1/3/4/0/134013279/siginoseno.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/con_te_partiro_piano_solo_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/bafumunegi.pdfIn PDF document text
    • http://vilivarowazu.rf.gd/elements_of_narrative_writing_5th_grade.pdfIn PDF document text
    • http://sixopilu.rf.gd/how_to_attach_burley_dlite_bike_trailer.pdfIn PDF document text
    • http://gotikomerutoj.rf.gd/89406494340.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_off0000d2c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C5 5376 bytes
SHA-256: ecfa40d71ac0d60c3e816c13da03323622b925e8a3d11b80ab2b8e9a69b0f75b
font_01_sfnt_off0000e522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE522 10300 bytes
SHA-256: b295188d0b4cab5244a66dad415bae59fc2caeae215dea84d0483d32637796ab