Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f65418bf635e083…

MALICIOUS

PDF

70.7 KB Created: 2021-02-12 02:25:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 49c8c6d286d47738b75c257c863c1841 SHA-1: fa81da2ed66cfc9b71ad303e91e6393fd4b7a7ec SHA-256: 7f65418bf635e0837835eb1c7ea984685fbe0bc9c25b7a636ec27d05237019cb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=let%20it%20go%20piano%20sheet%20music%20musescore PDF link annotation
    • http://winoraama.site/destiny_2_companion_app_loading_failedd12rg.pdfIn PDF document text
    • http://groshyk.site/gerund_worksheet_high_school7sih5.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxolusufa/jfgj7VB/vodimudenupoguxafepekiv.pdfIn PDF document text
    • http://goodsfor.life/11534021818kfqcq.pdfIn PDF document text
    • http://sarilaruzez.iblogger.org/axial_capra_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402533/normal_5ff7879405909.pdfIn PDF document text
    • https://tajafakedebufu.weebly.com/uploads/1/3/1/4/131438499/9174331.pdfIn PDF document text
    • http://remontlegko.info/sura_ar_rahman_bangla_free_downloadeeidc.pdfIn PDF document text
    • https://cdn.sqhk.co/verexumifo/hIgigdi/87527477816.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/hgiibha/run_lucy_run_mod.pdfIn PDF document text
    • http://espaceclient-cmb.com/powerpoint_templates_maker8aj4i.pdfIn PDF document text
    • http://werenntaq.online/49128577753olawx.pdfIn PDF document text
    • https://cdn.sqhk.co/dafisuwikib/hfdiaOq/corpse_party_blood_drive_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jasolugud/cugfhco/billie_eilish_drawing_tutorial_step_by_step_easy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vopapatadape.epizy.com/xojad.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_off0000d969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD969 5256 bytes
SHA-256: 22cfd4f3ea8f6825500c3bb8667651eca0fa5b18d74e771f8499fd6e01a86388
font_01_sfnt_off0000eb29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB29 10284 bytes
SHA-256: 010065cc55ca7fb04b1ae0126a029799dc11393ab6bd44a35fbf4a28c7ad803e