Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf75ce532e85c18…

MALICIOUS

PDF

68.2 KB Created: 2021-02-25 15:53:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 117154ead995bce6ff5b1c6774d721a7 SHA-1: 169a3951fc0559f6e27a5c2504a77c15220b457a SHA-256: 6bf75ce532e85c189facc1707776aaccf78a19adaaaae542550f7a42a14fa76e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=superstar+smtown+hack+online PDF link annotation
    • http://rafupofamurawaf.mygamesonline.org/63284623600.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/jitivozi_bibilaxomuvexe_gafuzibeno_tuwozu.pdfIn PDF document text
    • https://cdn.sqhk.co/baruduwege/ijfifgj/gold_rush_3d_no_ads_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/FgdjikR/30083250894.pdfIn PDF document text
    • http://minesaxofunawi.getenjoyment.net/44454879716.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/mhcCgj4/rogexozasenulim.pdfIn PDF document text
    • http://mojadejazisapa.sportsontheweb.net/what_is_analysis_and_design_in_civil_engineering.pdfIn PDF document text
    • https://vidiwubiref.weebly.com/uploads/1/3/0/8/130874646/xidopoxabevelow.pdfIn PDF document text
    • https://cdn.sqhk.co/juvanejejuwo/jB5gjwd/ates_ve_su_buz_devri_friv.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/12299331031.pdfIn PDF document text
    • https://cdn.sqhk.co/fegojujor/tIjjLhb/vertigo_music_in_ratched.pdfIn PDF document text
    • https://kuxodebareku.weebly.com/uploads/1/3/4/0/134042390/6812923.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pojozija.onlinewebshop.net/36764666249.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_off0000cd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6E 5432 bytes
SHA-256: da795f06942a0ff21456bb76154d47d9671f7e7723a6102cf2c54076f0f4a8a1
font_01_sfnt_off0000dfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCC 10760 bytes
SHA-256: d2fe492bc38803a9017201cd5887066bfc9f4ddb84b30371b9dd2f8990785bc1